Gm exhaust flapper valve

Discussion Starter · #1 · May 3, 2018 I had a Magnaflow exhaust put on my new truck this morning. I asked the guy to keep the flapper valve on, but he said it would rattle if I left it on there. I deferred to his experience and had it removed. AFM kicked in on the drive leaving the shop and the vibration is awful at highway speeds.Exhaust flappers; Exhaust hoses; Exhaust Manifolds, Risers, Gaskets, Plugs; Fuel System Parts. carburetors and carb kits and gaskets; fuel control cell - comlete - PCM; ... EXHAUST MANIFOLD PCM GM 305/350, #R028009 $ 269.00 Add to cart; Exhaust Manifold PCM ZR 6.0 liter (ZR engines from 2004-on), # R028023In response to drew1987. The flapper valve redirects exhaust gasses to warm up the intake manifold on a cold start to promote better vaporization of the cold fuel so it can mix better with air in the carb. When the engine and the spring are warmed up the spring relaxes and the flapper drops down to the normal "warmed up" position and the ... Adaptive valve is for reducing buzz or resonating noise while engine is in 4cyl mode. As far as I know replacing anything from third catalytic convertor back ( Cat Back Exhaust) will not harm computer. I just had Magnaflow installed on my 2014 and haven't noticed any 4V buzz drone and has a nice low rumble.Exhaust Flapper Valves with Clamps Fits Mercruiser with 5" and 6" Flapper valves. $49.95. IDE6752-5 ... Exhaust Elbow for Mercruiser GM 4.3L V6 applications. $209.95 Jan 10, 2007 · Jan 10, 2007. Oddometer: 2,306. Location: Fairfax Station VA. I had to remove the pipe on my 2014 R1200GS last night when taking off the passenger footrest brackets (setting the bike up for solo use) and noticed a flapper valve in the exhaust right after the cat that is cable controlled, no doubt by the engine computer. I was stunned to see that! Discussion Starter · #1 · May 3, 2018 I had a Magnaflow exhaust put on my new truck this morning. I asked the guy to keep the flapper valve on, but he said it would rattle if I left it on there. I deferred to his experience and had it removed. AFM kicked in on the drive leaving the shop and the vibration is awful at highway speeds.Oct 31, 2009 · Oct 31, 2009. #2. Re: Replace the exhaust flapper valve or not ? That flapper is there to help keep water from flowing backward thru the drive and exhaust and then into the engine from a sudden slow down, Or say, some A-hole has to run his skier right next to the beach your boat is beached on, and the wave that slams into your transom. Philly area. Nick is right- the heat riser (EFE valve) at the end of the pass. side exhaust manifold is closed when vacuum is applied, open when vacuum is not supplied. It's default position if you don't even hook a vacuum line to it is open. EGR valve (on the intake manifold) is the reverse. Open with vacuum applied (admitting exhaust into the ...Best and cheapest exhaust ever! When you want to be wide open throttle you can and click of button is stock . New 2019 - 2022+ GMC Sierra and Chevrolet Silverado 6.2L trucks are nearly silent. I'm going to fix that with a Borla ProXS 40359 muffler. Furthermore these ...GMC Yukon Models 2015 - 2016 SOP 07/01/2016 5.3L All GMC Sierra 1500 2014 - 2017 SOP 12/14/2016 for Plants G and Z* 4.3L or 5.3L All ... These concerns may be caused by the Passive Exhaust Valve (PEV), located in the exhaust muffler and tail pipe assembly, making noise or effecting exhaust tone, or may beJBA 1830S-6JS Shorty Header, SS, GM Truck 5.0/5.7L made by JBA Headers, for as low as $898.99. ... JBA Performance Exhaust 1830S-6JS 1 5/8" Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Silver Ceramic ... Spark Plug Boots Are Changed From Stock. Use Big Block Flapper Valve; Use Big Block Flapper Valve For Smog Legal ...Sierra 18-4457 Exhaust Protector Valve. 4.5 out of 5 stars 20. $32.48 $ 32. 48. Get it Thu, Jul 21 - Mon ... 2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines (Some V6 That Came with The Two Piece maniflold/Elbow) ... Mercury Marine/Mercruiser New OEM MANIFOLD KIT-EXHAUST 860246Q11 GM V8 1983-2002. 4.1 ...These kits include a cold air intake, stainless exhaust system, Brembo brake upgrade, and for the first time ever, a factory lift kit. Under the hood of the 2019 Silverado lies an L86 6.2-liter ...3 Inch Exhaust Flapper Protective Valve With Clamp Exhaust protector valve mounts on the outside of 3 in. exhaust tip to prevent backflow of water into the exhaust. For 3 in. diameter exhaust thru hulls Prevents backflow of water into exhaust system Stainless steel clamp included Designed to mount on the outside of exh Exhaust flap for 2009+ Volkswagen TDI models with the 2.0L, common rail "clean diesel" engine. This includes 2009+ Jetta TDI, Golf TDI and Sportwagen TDI as well as the 2012+ Passat TDI and 2012+ Beetle TDI. This exhaust flap fits in the center section of the exhaust, between the first and second catalytic converters. Flap replaces items with part numbers 1K0253691C, D, E, F, and G.Part # & Price. Description. BPI89160. $16.95. Shutter Flapper Exhaust Y Pipe 3 Inch for Mercruiser 99370A2 BPI89160. 3" Water Shutter that was used on V-6 & V-8 Mercruiser applications with center riser manifolds from 1982 thru 1987. It's purpose is to keep water from backing into the Riser & Manifold. BPI89170. $49.95.New exhaust manifold heat riser flapper SPRING for your 67 - 68 Firebird. Exact fit for all 67 - 68 Firebirds. Replaces GM Part # 521580 perfectly. Correctly made to OEM specifications! Mounts to the exahust manifolds and actuates the flapper. Part Number: FUE-2119 Lubricating butterfly valves. Finally, as a general rule of thumb for servicing exhaust butterfly valves, do not lubricate with any kind of oil. If a lubricant is required, stick to the solution above as even the thinnest oil types will make the valve seize and seal tighter than before, in either open or closed positions.One of the simplest of these devices was the heat riser valve in exhaust manifolds. This valve is simply a metal flapper with a counter weight that pivots inside the manifold. It is controlled by a small spiral thermostatic spring. When temperatures are low, the spring closes the valve. Once closed, the engine's exhaust is directed up andJun 11, 2021 · After buying a GS-911 several years ago and connecting it to the bike, it showed a fault code for the exhaust flapper valve. I removed the valve's cover and found it was seized. Worked some lubricant into the valve pivot point, it loosened up and I went riding again with no discernible change in performance, fuel mileage, etc. New 2019 - 2022+ GMC Sierra and Chevrolet Silverado 6.2L trucks are nearly silent. I'm going to fix that with a Borla ProXS 40359 muffler. Furthermore these ...In response to drew1987. The flapper valve redirects exhaust gasses to warm up the intake manifold on a cold start to promote better vaporization of the cold fuel so it can mix better with air in the carb. When the engine and the spring are warmed up the spring relaxes and the flapper drops down to the normal "warmed up" position and the ... Jan 01, 2019 · Manufacturer discovered that exhaust flapper valve (parts. #3653854-1, 3852753-7 & 3855517-3) in exhaust pipe is not effective. in preventing water ingestion. The valve has a short life span & has been. known to disconnect from its pivot rod & clog exhaust. Manufacturer no. longer installs on affected engines. Part # & Price. Description. BPI89160. $16.95. Shutter Flapper Exhaust Y Pipe 3 Inch for Mercruiser 99370A2 BPI89160. 3" Water Shutter that was used on V-6 & V-8 Mercruiser applications with center riser manifolds from 1982 thru 1987. It's purpose is to keep water from backing into the Riser & Manifold. BPI89170. $49.95.Flapper Kit 3-3/8". These flappers are replacements for the Bell Type tips. 3-3/8" diameter, kits include screws and mounting tab. Sold individually. .. Add to Wish List. Add to Compare. $11.04.60930 Shutter $32.00. This is the most common shutter. It is sold in packs of one. This fits models with the shaft in the center. This fits inline 4 cylinders (GM and Mercury engines) (1982 and up) as well as 1973-76 Ford engines, most 1985 and up V6 and V8 GM engines. 99370A2 Shutter $30.00. Sold in packs of one. Of course doing it my way was more expensive, because those Volvo OE 90*exhaust pipes that convert from the 4"riser hose to the 3.5" Y pipe hose are about $200 each. But then for future replacements you can use Barr manifolds which are good quality and reasonably priced.Subject: Exhaust Rattle, Buzz, Pop or Whistle Models: 2014 Chevrolet Silverado 1500 2014 GMC Sierra 1500 Equipped with 4.3L, 5.3L or 6.2L Engine (RPOs LV3, L83, L86) Built Prior to December 8, 2013 or Muffler Julian Date of 352 2 (See Below) ... Rotate the Passive Exhaust Valve (PEV) counterclockwise as shown in the illustration above. ...That flapper is there to help keep water from flowing backward thru the drive and exhaust and then into the engine from a sudden slow down, Or say, some A-hole has to run his skier right next to the beach your boat is beached on, and the wave that slams into your transom. Keeps that water from washing up the exhaust and into your cylinders.May 25, 2011 · May 22, 2011. Messages. 7. May 25, 2011. #1. I was told by a Mercruiser Shop that they do not replace flapper valves in standard exhaust anymore. They showed me a bulletin from Volvo-Penta stateing to leave them out as they are more trouble then what there worth. Any opinions? BTW my engine is a Merc 5.0 Carb. The aftermarket GM (Borla) exhaust eliminates the valves. I cut both mine off and installed a Magnaflow 12909 and gave it the sound and performance it should have. attached is a picture of the valve in the open position. Quote; Link to comment ... The GM exhaust kit does away with the flappers, there is no reason to keep them. ...Chevelle Exhaust & Fuel System. Chevelle Exhaust Parts; Chevelle Gas Tank Parts; ... 1972 Chevelle Cowl Induction Hood Flapper Door Brackets, Pair, GM NOS Part Number: 3968555 Our Price: ... 1972 Chevelle Cowl Induction Hood Inner Flapper Valve Frame Mounting Screw Set, 6 Pieces Part Number: AIR-56 Our Price: ...Jan 10, 2007. Oddometer: 2,306. Location: Fairfax Station VA. I had to remove the pipe on my 2014 R1200GS last night when taking off the passenger footrest brackets (setting the bike up for solo use) and noticed a flapper valve in the exhaust right after the cat that is cable controlled, no doubt by the engine computer. I was stunned to see that!Exhaust kit 15267 has been tuned to produce superior interior and exterior sound levels for an enhanced driving experience when installed on your vehicle. Dyno-Proven Performance Extensive dyno testing is used to ensure that this cat-back exhaust system increases engine power and performance by improving the flow dynamics and evacuation of ...This is a New Exhaust Manifold that will fit the inline 6cyl , straight 6cyl GM, Chevrolet engine sizes , 194 , 230 , 250 , 292 , 4.1L , 4.8L. This is a universal flange that fits the 2-bolt and 3-bolt style flange.This exhaust manifold is for the NON INTEGRAL style head. This exhaust is not machined for the Heat Riser Assembly (the flapper valve), Best and cheapest exhaust ever! When you want to be wide open throttle you can and click of button is stock . It blocks off that side of the exhaust to force hot exhaust through a passage in the intake manifold to the other side exhaust. It is used to heat up the intake manifold for better cold engine drivability and faster warm-ups. As it warms up the valve opens and allows exhaust to flow normally.This is a New Exhaust Manifold that will fit the inline 6cyl , straight 6cyl GM, Chevrolet engine sizes , 194 , 230 , 250 , 292 , 4.1L , 4.8L. This is a universal flange that fits the 2-bolt and 3-bolt style flange.This exhaust manifold is for the NON INTEGRAL style head. This exhaust is not machined for the Heat Riser Assembly (the flapper valve),Best and cheapest exhaust ever! When you want to be wide open throttle you can and click of button is stock . I started my truck and it all the sudden started making this noise.Is it a bent rod exhaust valve sticking a bad lifter? What is your experience?Weekly Video...May 03, 2018 · 6,840 Posts. Discussion Starter · #1 · May 3, 2018. I had a Magnaflow exhaust put on my new truck this morning. I asked the guy to keep the flapper valve on, but he said it would rattle if I left it on there. I deferred to his experience and had it removed. AFM kicked in on the drive leaving the shop and the vibration is awful at highway speeds. Does MagnaFlow Exhaust have Flapper Valve to Maintain Tone on a Motor with Active Fuel Management ... GM - Gas/Diesel (37 reviews) Code: SU2845. Retail: $445.00. Our Price: $ 431.89. Performance Chip; Programmer; Flashpaq; Color Screen; No - Not California Approved; Superchips; more information >Jul 28, 2018 · Jul 27, 2018. #1. Was under the '16 Silverado today looking for a small rattle and came across this thing in the exhaust pipe just after the muffler. Called an adaptive valve, it's a spring loaded weighted flapper who's job is to attenuate exhaust noise to eliminate the annoying low frequencies. Apparently they can also fail causing an annoying rattle and also in rust areas they can get stuck shut. Free Shipping - OER Exhaust Manifold Heat Riser Valves with qualifying orders of $99. Shop Exhaust Heat Risers at Summit Racing. Summit Racing SpeedCard - Open a World of Possibilities - Apply Today! ... Exhaust Heat Riser Valve, 2.0 in. Diameter, Chevy, GMC, Each See More Specifications | Check the Fit. OER Exhaust Manifold Heat Riser Valves ...Volvo Penta Flapper Parts Bulletin Short explanation: Remove flapper valve from V8 and V6 Y-pipes because they fail and clog exhausts : GAS FUEL PUMP : Volvo Penta Chart of fuel pump output pressure for all gas engines with electric fuel pumps : GM OIL FILTERS : Volvo Penta Parts Bulletin explaining different sizes of oil filters for GM engines.Sierra 18-4456 Universal 3" Exhaust Flapper Includes 3" stainless steel clamp. Features: Compounded rubber flapper valves stops water from entering the exhaust system Constructed with weather resistant EPDM with U/V... Add to Cart ... Fits MCM/MIE GM V-8 (283, 305, 350 & 377 cid) engines. ...Jan 10, 2007 · Jan 10, 2007. Oddometer: 2,306. Location: Fairfax Station VA. I had to remove the pipe on my 2014 R1200GS last night when taking off the passenger footrest brackets (setting the bike up for solo use) and noticed a flapper valve in the exhaust right after the cat that is cable controlled, no doubt by the engine computer. I was stunned to see that! Sierra 18-4457 Exhaust Protector Valve. ... emp Exhaust Flapper Water Shutter & Grommets for Mercruiser 3.0L 3.7L 60930 18-2727 Please Read Item Description for Exact ... Best and cheapest exhaust ever! When you want to be wide open throttle you can and click of button is stock . Read Our Review. 1. Borla 2.75″ Inlet x 2.25″ (140537): The Best Exhaust System for GMC Sierra and Chevy Silverado. The exhaust system is top-quality and performant. It ensures 7-10% of torque and power increase, significant fuel economy, especially at high speeds, streamlining exhaust flow.Flapper Kit 3-3/8". These flappers are replacements for the Bell Type tips. 3-3/8" diameter, kits include screws and mounting tab. Sold individually. .. Add to Wish List. Add to Compare. $11.04. Joined Jul 30, 2017. 312 Posts. #5 · Aug 1, 2017. Mr. Lee said: Removing the flapper does not make it that much louder. No one else is going to notice but you. I would recommend a new exhaust. I think my plan is to replace the headers and ditch the flapper but keep the stock exhaust.Jun 23, 2008 · The valve works backwards from a normal valve; i.e. when the engine is cold, the valve gets vacuum and closes. This diverts the exhaust gasses back through the intake and out the driver's side. When the engine warms up, the vacuum is closed off, and any remaining vacuum us purged through the vacuum switch. Jun 24, 2008. This flapper valve or commonly called heat riser valve sends heat up under the intake manifold thus heating up the carb to improve cold weather operation, improve vaporization of fuel and even to prevent carburetor icing. Those that don't have it don't get these benefits. In hot climates, they are probably not needed.Subject: Exhaust Rattle, Buzz, Pop or Whistle Models: 2014 Chevrolet Silverado 1500 2014 GMC Sierra 1500 Equipped with 4.3L, 5.3L or 6.2L Engine (RPOs LV3, L83, L86) Built Prior to December 8, 2013 or Muffler Julian Date of 352 2 (See Below) ... Rotate the Passive Exhaust Valve (PEV) counterclockwise as shown in the illustration above. ...60930 Water Shutters Flapper Exhaust Exhaust Flapper Water Shutter with Grommets Fit for Mercruiser 2.5L 3.0L 3.7L 60930 $25.99 $ 25 . 99 Get it Fri, Nov 19 - Wed, Dec 15 YIHETOP 2pcs Exhaust Flappers Water Shutters Fits 1982-1996 Mercruiser 807166A3 14348A1 14348A2 Sierra 18-2732 ... Sierra 18-4458 Exhaust Protector Valve white, 5 ... www.glmmarine.com 11 MerCruiser Ref No. GLM No. OEM No. Description 1 2 3A 3B 4 5 6 6A 6B 7 8 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 3260930 Water Shutters Flapper Exhaust Exhaust Flapper Water Shutter with Grommets Fit for Mercruiser 2.5L 3.0L 3.7L 60930 $25.99 $ 25 . 99 Get it Fri, Nov 19 - Wed, Dec 15 May 25, 2011 · May 22, 2011. Messages. 7. May 25, 2011. #1. I was told by a Mercruiser Shop that they do not replace flapper valves in standard exhaust anymore. They showed me a bulletin from Volvo-Penta stateing to leave them out as they are more trouble then what there worth. Any opinions? BTW my engine is a Merc 5.0 Carb. Chevy uses Active Fuel Management to shut off cylinders in their V-6 and V-8 engines. To reduce the noise that would occur during that transition they included a passive flapper valve that is used for exhaust tuning. When the engine is making the transition there is no indication that the engine is going in V-4 or V-6 from a V-8 mode.Sierra 18-4457 Exhaust Protector Valve. 4.5 out of 5 stars 20. $32.48 $ 32. 48. Get it Thu, Jul 21 - Mon ... 2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines (Some V6 That Came with The Two Piece maniflold/Elbow) ... Mercury Marine/Mercruiser New OEM MANIFOLD KIT-EXHAUST 860246Q11 GM V8 1983-2002. 4.1 ...Exhaust Flapper Water Shutter kit Replacement for 1998 and newer Mercruiser 807166A1 Pair (Set of 2) 4.4 out of 5 stars 17. $24.99 $ 24. 99. Get it as soon as Thu, Jun 9. ... Marinized V-8 Engines by General Motors with Thunderbolt IV and V HEI Ignition Systems. 4.7 out of 5 stars 352. Save 30%. $37.22 $ 37. 22 $53.25 $53.25. Lowest price in 30 ...I remove the muffler and install an exhaust tip. I am putting the stock muffler back and will wait to get the Remus or Akrapovic. The sound in the video does not compare to the loudness of the live sound but I can detect some backfiring and hesitation when rolling the gas. Afternoon Zapata. That is pretty typical of the 360° 2 cylinder BMW ...Mar 07, 2016 · 350 Buick. Join Date: Nov 18, 2015. Location: Stephenson County, IL. Posts: 932. Exhaust flapper valve thing..... Yea, I don't know what this is called but it's a open/close valve between the exhaust manifold and the Y pipe. My old Dakota has one as well, that opens and closes as it should. The one on the Wagoneer (pass side) is rusted solid. New exhaust manifold heat riser flapper SPRING for your 67 - 68 Firebird. Exact fit for all 67 - 68 Firebirds. Replaces GM Part # 521580 perfectly. Correctly made to OEM specifications! Mounts to the exahust manifolds and actuates the flapper. Part Number: FUE-2119Does MagnaFlow Exhaust have Flapper Valve to Maintain Tone on a Motor with Active Fuel Management ... GM - Gas/Diesel (37 reviews) Code: SU2845. Retail: $445.00. Our Price: $ 431.89. Performance Chip; Programmer; Flashpaq; Color Screen; No - Not California Approved; Superchips; more information >Read Our Review. 1. Borla 2.75″ Inlet x 2.25″ (140537): The Best Exhaust System for GMC Sierra and Chevy Silverado. The exhaust system is top-quality and performant. It ensures 7-10% of torque and power increase, significant fuel economy, especially at high speeds, streamlining exhaust flow.The BORLA® R&D team is excited to show what they have cooked up for the GMC Sierra 1500. BORLA® now offers cat-back systems for the 5.3L and the 6.2L EcoTec3 V8 with a few different tip options and tip exit styles. ... 2019-2021 Sierra 1500 Exhaust Systems now available! Click any system below for more information. Products Exhaust Systems ...1 pair exhaust flapper 3" check valve exhaust guard rubber cover seachoice 28351 4.5 out of 5 stars (9) 9 product ratings - 1 PAIR EXHAUST FLAPPER 3" CHECK VALVE EXHAUST GUARD RUBBER COVER SEACHOICE 28351Exhaust Butterfly Valve Chirp. Thread starter Mikef; Start date Sep 6, 2017; Sep 6, 2017 #1 M. Mikef Full Access Member. Joined Sep 18, 2014 Posts 208 Reaction score 3. Can someone instruct me where this Exhaust Butterfly valve is located and how to "pin it open". I think mine is chirping. Thank you. 2016 Yukon XL Denali . Sep 7, 2017 #2 T.Re: 270 GM running hot Not familiar with this set up, but does it have flapper valves in exhaust below the risers? A flapper that broke off and partially blocked the exhaust caused the SAME PROBLEM FOR ME ON A DIFFERENT SET UP FOR ME above 3000.Apr 16, 2015 · Who else has the famous exhaust Flapper CHIRP? EVERYTIME I get off the gas and coast, then apply just a touch of gas. CHIRP! I rode with the So Cal field engineer last week. He said it's a defective "Flapper valve" in the back section of the exhaust system. It's to help quiet down the V4 noises. So hears the strange thing. GM knows of the problem. Does MagnaFlow Exhaust have Flapper Valve to Maintain Tone on a Motor with Active Fuel Management ... GM - Gas/Diesel (37 reviews) Code: SU2845. Retail: $445.00. Unless I'm mistaken (probably am), the adaptive exhaust valve on our Denali's is used to counter or attenuate the exhaust noise to eliminate annoying low frequencies (drone). I have the NPP exhaust on my '19 Corvette GS (also called adaptive exhaust in some circles). ... Really disappointed with GMC Adaptive Cruise and HUD's posted speed ...Keep your exhaust system in top shape with quality marine thru hull flapper valves. Shop brands, like Centek & Sierra. Free shipping on orders over $100. Sierra 18-4457 Exhaust Protector Valve. 4.5 out of 5 stars 20. $32.48 $ 32. 48. Get it Thu, Jul 21 - Mon ... 2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines (Some V6 That Came with The Two Piece maniflold/Elbow) ... Mercury Marine/Mercruiser New OEM MANIFOLD KIT-EXHAUST 860246Q11 GM V8 1983-2002. 4.1 ...Flapper Kit 3-3/8". These flappers are replacements for the Bell Type tips. 3-3/8" diameter, kits include screws and mounting tab. Sold individually. .. Add to Wish List. Add to Compare. $11.04.Part Number: 101-10. Designed to clamp over most exhaust tips, our external flappers are constructed from high temp rubber and DO NOT use an internal metal plate which could cause failure. Measure the outside diameter of your exhaust tip to determine the size needed. Sold individually (Tip not included). Fits 4" or 3-1/2" diameter tips (3 1/2 ... Mar 01, 2017 · The heat riser & exhaust valve loss for 5% is nothing. This also greatly improves starts when hot without crossover heat. Interesting that the valve also increases back pressure in the exhaust manifolds & intake while cold to warm transition. Since the exhaust gasses are running backwards past the 2 rear cylinders on the right side. Exhaust Butterfly Valve Chirp. Thread starter Mikef; Start date Sep 6, 2017; Sep 6, 2017 #1 M. Mikef Full Access Member. Joined Sep 18, 2014 Posts 208 Reaction score 3. Can someone instruct me where this Exhaust Butterfly valve is located and how to "pin it open". I think mine is chirping. Thank you. 2016 Yukon XL Denali . Sep 7, 2017 #2 T.Best and cheapest exhaust ever! When you want to be wide open throttle you can and click of button is stock .5 product ratings - OMC Mercruiser Volvo Ford GM MPI Exhaust Flapper Valves 4" S Steel hose clamp. $24.00. or Best Offer +$11.60 shipping. Sponsored. 60930 Water Shutters Flapper Exhaust Exhaust Flapper Water Shutter with Grommets Fit for Mercruiser 2.5L 3.0L 3.7L 60930 $25.99 $ 25 . 99 Get it Fri, Nov 19 - Wed, Dec 15 Flapper Kit 3-3/8". These flappers are replacements for the Bell Type tips. 3-3/8" diameter, kits include screws and mounting tab. Sold individually. .. Add to Wish List. Add to Compare. $11.04. Jul 02, 2013 · Chevy uses Active Fuel Management to shut off cylinders in their V-6 and V-8 engines. To reduce the noise that would occur during that transition they included a passive flapper valve that is used for exhaust tuning. When the engine is making the transition there is no indication that the engine is going in V-4 or V-6 from a V-8 mode. This is a New Exhaust Manifold that will fit the inline 6cyl , straight 6cyl GM, Chevrolet engine sizes , 194 , 230 , 250 , 292 , 4.1L , 4.8L. This is a universal flange that fits the 2-bolt and 3-bolt style flange.This exhaust manifold is for the NON INTEGRAL style head. This exhaust is not machined for the Heat Riser Assembly (the flapper valve),A look at the stock muffler with flapper valve and the straight through design of the resonatorDNJ EV939 Exhaust Valve for 1991-2004 / Toyota / 4Runner, Previa, T100, Tacoma / 2.4L, 2.7L / DOHC / L4 / 16V / 2438cc, 2694cc / 2RZFE, 2TZFE, 2TZFZE, 3RZFE ... emp Exhaust Flapper Water Shutter & Grommets for Mercruiser 3.0L 3.7L 60930 18-2727 Please Read Item Description for Exact Applications. ... DNJ Exhaust Intake Valve Kit for 1980 to ...Jul 13, 2014 · Last year I bought a new-to-me 2010 Camhead RT. Sweet bike. The previous owner had installed a full Remus exhaust system -- from header pipes to exhaust. Remus eliminates the crossover, and Catalytic converter, keeps the Oxygen sensors and the 'flapper valve', and has the titanium muffler. Limited-Lifetime Warranty Most have a funky looking flange for the rear pipe and I would like to find one Add to Your List Used Exhaust Manifolds for the Chevrolet Corvette for Sale Heat riser spring mounts on exhaust manifold and controls heat riser flapper valve Heat riser spring mounts on exhaust manifold and controls heat riser flapper ...Air Bypass Valves; Catalytic Converters; Diesel Exhaust Fluid System Parts; EGR Parts & Valves; Emission Gaskets; Emissions Hardware & Components; Exhaust Gaskets; ... Garage Sale - Dynatech S43-00555 Small Block Chevy Exhaust Flange, 1.88 Inch. $24.99. Was: $43.99. $10.99 shipping. SPONSORED.Exhaust gas flaps are specifically dimensioned to meet the high demands in the exhaust gas system: they must outlast gas temperatures of up to 950°C, whilst closing correctly and remaining moveable during their entire service life. Left: Pierburg exhaust gas flaps. To ensure proper functioning even in the corrosive environment prevailing in ...The BORLA® R&D team is excited to show what they have cooked up for the GMC Sierra 1500. BORLA® now offers cat-back systems for the 5.3L and the 6.2L EcoTec3 V8 with a few different tip options and tip exit styles. ... 2019-2021 Sierra 1500 Exhaust Systems now available! Click any system below for more information. Products Exhaust Systems ...Flapper Kit 3-3/8". These flappers are replacements for the Bell Type tips. 3-3/8" diameter, kits include screws and mounting tab. Sold individually. .. Add to Wish List. Add to Compare. $11.04. Does MagnaFlow Exhaust have Flapper Valve to Maintain Tone on a Motor with Active Fuel Management ... GM - Gas/Diesel (37 reviews) Code: SU2845. Retail: $445.00. Keep your exhaust system in top shape with quality marine thru hull flapper valves. Shop brands, like Centek & Sierra. Free shipping on orders over $100.Flapper Kit 3-3/8". These flappers are replacements for the Bell Type tips. 3-3/8" diameter, kits include screws and mounting tab. Sold individually. .. Add to Wish List. Add to Compare. $11.04. Sierra 18-4457 Exhaust Protector Valve. ... emp Exhaust Flapper Water Shutter & Grommets for Mercruiser 3.0L 3.7L 60930 18-2727 Please Read Item Description for Exact ... In response to drew1987. The flapper valve redirects exhaust gasses to warm up the intake manifold on a cold start to promote better vaporization of the cold fuel so it can mix better with air in the carb. When the engine and the spring are warmed up the spring relaxes and the flapper drops down to the normal "warmed up" position and the ... GM-Borla Exhaust, 5.3l Questions. I have a 2017 silverado, 5.3 V8. It is too quiet for me, I was hoping to do a muffler swap but am worried about the v4 drone. I was reading that there is a catback kit that borla sells through chevy that has a flapper to avoid this. Do they sell just the muffler? Has anyone done this? No. They only sell the cat ...May 25, 2011 · May 22, 2011. Messages. 7. May 25, 2011. #1. I was told by a Mercruiser Shop that they do not replace flapper valves in standard exhaust anymore. They showed me a bulletin from Volvo-Penta stateing to leave them out as they are more trouble then what there worth. Any opinions? BTW my engine is a Merc 5.0 Carb. Factory original quality for less Direct fit replacement. $61.52. OER® Exhaust Manifold Heat Riser (9A603AR) 0. # mpn4806244271. Exhaust Manifold Heat Riser by OER®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind.With the weight in your position the flapper valve is preventing the exhaust heat from reaching the incoming mixture. This is where it should be for a hot engine. Gene Schneider Re: 52 chevy 235 stuck exhaust manifold heat valve. Lee Prairie #141220 04/17/09 02:38 AM. Joined: Nov 2007. Posts: 476. Reno, NV. Mark Yeamans. Backyard Mechanic. Mark ...Nov 09, 2018 · All Activity; Home ; Fullsize Truck & SUV - 2014-2019 K2XX Platform ; 2014 - 2019 Silverado & Sierra ; leave flapper valve or not Upgrade the look and sound of your truck’s exhaust system with one of our tuned, bolt-on exhaust kits. They deliver great performance sound and look great on your new truck. The entire system is made from 304 stainless steel with increased 3” diameter piping and includes 4.5” high polish 304 stainless tip. Backpressure in the cat-back ... Exhaust Elbow Bellow for Mercruiser 140 & 165 GM Engines. Goes from the exhaust riser to the exhaust pipe on early 140 and 165 HP Inline GM engines.... $38.95. BPI89070 ... Exhaust Flapper Valves with Clamps Fits Mercruiser with 5" and 6" Flapper valves. $49.95. IDE6752-5 Hose Clamp, Stainless Steel, 1-7⁄8" - 3-1⁄4"Air Bypass Valves; Catalytic Converters; Diesel Exhaust Fluid System Parts; EGR Parts & Valves; Emission Gaskets; Emissions Hardware & Components; Exhaust Gaskets; ... Garage Sale - Dynatech S43-00555 Small Block Chevy Exhaust Flange, 1.88 Inch. $24.99. Was: $43.99. $10.99 shipping. SPONSORED.JBA 1830S-6JS Shorty Header, SS, GM Truck 5.0/5.7L made by JBA Headers, for as low as $898.99. ... JBA Performance Exhaust 1830S-6JS 1 5/8" Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Silver Ceramic ... Spark Plug Boots Are Changed From Stock. Use Big Block Flapper Valve; Use Big Block Flapper Valve For Smog Legal ...YIHETOP 2pcs Exhaust Flappers Water Shutters Fits 1982-1996 Mercruiser 807166A3 14348A1 14348A2 Sierra 18-2732 ... Sierra 18-4458 Exhaust Protector Valve white, 5 ... Oct 31, 2009 · Oct 31, 2009. #2. Re: Replace the exhaust flapper valve or not ? That flapper is there to help keep water from flowing backward thru the drive and exhaust and then into the engine from a sudden slow down, Or say, some A-hole has to run his skier right next to the beach your boat is beached on, and the wave that slams into your transom. Sierra 18-4457 Exhaust Protector Valve. ... emp Exhaust Flapper Water Shutter & Grommets for Mercruiser 3.0L 3.7L 60930 18-2727 Please Read Item Description for Exact ... Heat Shield. The number one rattling culprit in your Silverado's exhaust system is the heat shield. They can get a little loose as the vehicle ages and accumulates mileage. Once this happens, it'll rattle all of the time. It's particularly noticeable when you rev the engine in neutral and let off of the gas pedal.60930 Water Shutters Flapper Exhaust Exhaust Flapper Water Shutter with Grommets Fit for Mercruiser 2.5L 3.0L 3.7L 60930 $25.99 $ 25 . 99 Get it Fri, Nov 19 - Wed, Dec 15 A look at the stock muffler with flapper valve and the straight through design of the resonator OER Exhaust Manifold Heat Riser 1964-78 Chevy Small Block. $64.99. Ships Today. Lowest Price Guarantee. Exhaust Manifold Heat Riser. 1964-72 Chevy Chevelle. 1967-75 Chevy Camaro. 1968-70 Chevy Impala and Nova. 1971-78 Chevy/GMC Truck.Sierra 18-4457 Exhaust Protector Valve. 4.5 out of 5 stars 20. $32.48 $ 32. 48. Get it Thu, Jul 21 - Mon ... 2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines (Some V6 That Came with The Two Piece maniflold/Elbow) ... Mercury Marine/Mercruiser New OEM MANIFOLD KIT-EXHAUST 860246Q11 GM V8 1983-2002. 4.1 ...Volvo Penta Flapper Parts Bulletin Short explanation: Remove flapper valve from V8 and V6 Y-pipes because they fail and clog exhausts : GAS FUEL PUMP : Volvo Penta Chart of fuel pump output pressure for all gas engines with electric fuel pumps : GM OIL FILTERS : Volvo Penta Parts Bulletin explaining different sizes of oil filters for GM engines.Get it as soon as Mon, Feb 14. FREE Shipping on orders over $25 shipped by Amazon. - 6" Inch Backdraft Damper for Straight or Flex Duct. Bathroom Exhaust Fan. Kitchen Hood Exhaust Fan and Different Dryer Fan backflow Preventer. Steel Damper with Aluminum Valve Flaps. 4.3 out of 5 stars. 49. $15.69. Buy TITAN 757 PERFORMANCE MerCruiser Water Flapper Exhaust Shutter 60930 18-2727 9-42800: Fuel-Flow Instruments - Amazon.com FREE DELIVERY possible on eligible purchases Skip to main content ... 120 (GM 2.5L, 153 cid, Inline 4) 6229718 - 0B531853 1983 - 1986;GM-Borla Exhaust, 5.3l Questions. I have a 2017 silverado, 5.3 V8. It is too quiet for me, I was hoping to do a muffler swap but am worried about the v4 drone. I was reading that there is a catback kit that borla sells through chevy that has a flapper to avoid this. Do they sell just the muffler? Has anyone done this? No. They only sell the cat ... Chevy uses Active Fuel Management to shut off cylinders in their V-6 and V-8 engines. To reduce the noise that would occur during that transition they included a passive flapper valve that is used for exhaust tuning. When the engine is making the transition there is no indication that the engine is going in V-4 or V-6 from a V-8 mode.JBA 1830S-6JS Shorty Header, SS, GM Truck 5.0/5.7L made by JBA Headers, for as low as $898.99. ... JBA Performance Exhaust 1830S-6JS 1 5/8" Header Shorty Stainless Steel GM Truck 5.0/5.7L with Carburetor Silver Ceramic ... Spark Plug Boots Are Changed From Stock. Use Big Block Flapper Valve; Use Big Block Flapper Valve For Smog Legal ...This is a New Exhaust Manifold that will fit the inline 6cyl , straight 6cyl GM, Chevrolet engine sizes , 194 , 230 , 250 , 292 , 4.1L , 4.8L. This is a universal flange that fits the 2-bolt and 3-bolt style flange.This exhaust manifold is for the NON INTEGRAL style head. This exhaust is not machined for the Heat Riser Assembly (the flapper valve),Exhaust Flapper Valves with Clamps Fits Mercruiser with 5" and 6" Flapper valves. $49.95. IDE6752-5 ... Exhaust Elbow for Mercruiser GM 4.3L V6 applications. $209.95 Keep your exhaust system in top shape with quality marine thru hull flapper valves. Shop brands, like Centek & Sierra. Free shipping on orders over $100. Sierra 18-4457 Exhaust Protector Valve. ... emp Exhaust Flapper Water Shutter & Grommets for Mercruiser 3.0L 3.7L 60930 18-2727 Please Read Item Description for Exact ... GM-Borla Exhaust, 5.3l Questions. I have a 2017 silverado, 5.3 V8. It is too quiet for me, I was hoping to do a muffler swap but am worried about the v4 drone. I was reading that there is a catback kit that borla sells through chevy that has a flapper to avoid this. Do they sell just the muffler? Has anyone done this? No. They only sell the cat ... Keep your exhaust system in top shape with quality marine thru hull flapper valves. Shop brands, like Centek & Sierra. Free shipping on orders over $100. Upgrade the look and sound of your truck's exhaust system with one of our tuned, bolt-on exhaust kits. They deliver great performance sound and look great on your new truck. The entire system is made from 304 stainless steel with increased 3" diameter piping and includes 4.5" high polish 304 stainless tip. Backpressure in the cat-back ...Sierra 18-4456 Universal 3" Exhaust Flapper Includes 3" stainless steel clamp. Features: Compounded rubber flapper valves stops water from entering the exhaust system Constructed with weather resistant EPDM with U/V... Add to Cart. Quick view Add to Cart. ... Includes 18-0305-1 Exhaust Elbow Gasket. Crusader GM Small Block V8 305, 350 Crusader ...3 Inch Exhaust Flapper Protective Valve With Clamp Exhaust protector valve mounts on the outside of 3 in. exhaust tip to prevent backflow of water into the exhaust. For 3 in. diameter exhaust thru hulls Prevents backflow of water into exhaust system Stainless steel clamp included Designed to mount on the outside of exh Volvo Penta Flapper Parts Bulletin Short explanation: Remove flapper valve from V8 and V6 Y-pipes because they fail and clog exhausts : GAS FUEL PUMP : Volvo Penta Chart of fuel pump output pressure for all gas engines with electric fuel pumps : GM OIL FILTERS : Volvo Penta Parts Bulletin explaining different sizes of oil filters for GM engines.Valve Grinding Compound; Ignition & Repair Tools; ... made by General motors... $17.00 $15.00. Add to Cart. Add to Cart. Mercury Marine / Quicksilver. OEM MerCruiser 5.0/5.7/6.2 350 Exhaust Manifold 860246Q11 Replaces 860246A10 860246a15 860246-c ... OEM Quicksilver/Mercury Exhaust Flapper/Shutter 807166A1 Goes inside Y-pipe for a late model V6 ...New 2019 - 2022+ GMC Sierra and Chevrolet Silverado 6.2L trucks are nearly silent. I'm going to fix that with a Borla ProXS 40359 muffler. Furthermore these ... I can say for a fact the GM accessories version of the Borla does have the flapper valve. The regular Borla version does not. I can also say for a fact that there is absolutely no perceivable change in tone when the car switches into V4 mode with the GM Borla exhaust on the 2015+ vehicles. My dad has the GM Borla on his 2016 6.2 SUV.I have talked to Star owners who said that removing the valve killed low-end power and made the exhaust louder. BMW did an extraordinary job of configuring the engine/fly-by-wire throttle on the 2015 R1200R. I have never ridden another motorcycle that had a smoother, more predictable throttle.A look at the stock muffler with flapper valve and the straight through design of the resonatorIn response to drew1987. The flapper valve redirects exhaust gasses to warm up the intake manifold on a cold start to promote better vaporization of the cold fuel so it can mix better with air in the carb. When the engine and the spring are warmed up the spring relaxes and the flapper drops down to the normal "warmed up" position and the ... 3 Inch Exhaust Flapper Protective Valve With Clamp Exhaust protector valve mounts on the outside of 3 in. exhaust tip to prevent backflow of water into the exhaust. For 3 in. diameter exhaust thru hulls Prevents backflow of water into exhaust system Stainless steel clamp included Designed to mount on the outside of exh Jul 28, 2018 · Jul 27, 2018. #1. Was under the '16 Silverado today looking for a small rattle and came across this thing in the exhaust pipe just after the muffler. Called an adaptive valve, it's a spring loaded weighted flapper who's job is to attenuate exhaust noise to eliminate the annoying low frequencies. Apparently they can also fail causing an annoying rattle and also in rust areas they can get stuck shut. New 2019 - 2022+ GMC Sierra and Chevrolet Silverado 6.2L trucks are nearly silent. I'm going to fix that with a Borla ProXS 40359 muffler. Furthermore these ... Oct 31, 2009 · Oct 31, 2009. #2. Re: Replace the exhaust flapper valve or not ? That flapper is there to help keep water from flowing backward thru the drive and exhaust and then into the engine from a sudden slow down, Or say, some A-hole has to run his skier right next to the beach your boat is beached on, and the wave that slams into your transom. Jun 12, 2020 · Fullsize Truck & SUV - 2014-2019 K2XX Platform. 2014 - 2019 Silverado & Sierra. flap in exhaust, what's it for? Sign up for FREE! Become a GM-Trucks.com Member Today! In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. Anti-Siphon Valves; Carbon Cannisters; Diesel Fuel Filters; Filter Wrenches ... made by General motors... $17.00 $15.00. Add to Cart. Add to Cart. Mercury Marine / Quicksilver. OEM MerCruiser 5.0/5.7/6.2 350 Exhaust Manifold 860246Q11 Replaces 860246A10 860246a15 860246-c ... OEM Quicksilver/Mercury Exhaust Flapper/Shutter 807166A1 Goes inside ...Apr 10, 2019 · 2019-2021 Silverado & Sierra. 2019-2021 Engine, Driveline, & Exhaust. Another Flapper Valve Question. In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every ... 2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines (Some V6 That Came with The Two Piece maniflold/Elbow) 4.1 out of 5 stars 19 $29.99 $ 29 . 99 5 product ratings - OMC Mercruiser Volvo Ford GM MPI Exhaust Flapper Valves 4" S Steel hose clamp. $24.00. or Best Offer +$11.60 shipping. Sponsored. The era of the Chevy inline 6 has been a long reign. Starting with some of the first mass produced overhead valve engines in the late 20's, to the ever-popular 216s and 235s, all the way up to the "Atlas'' inline 6 of the modern era, the 250 Chevy inline 6 cylinder has cemented its place in the internal combustion engine hall of fame.Convertible Exhaust Butterfly Valve - Service Bulletin Camaro Convertible Forum You are browsing camaro5 Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > Specific ... Here's the info as written by GM for the 2011's. I was given a copy of it when I took my 2012 in for the same issue, but can't seem to find it now. ...Exhaust flappers; Exhaust hoses; Exhaust Manifolds, Risers, Gaskets, Plugs; Fuel System Parts. carburetors and carb kits and gaskets; fuel control cell - comlete - PCM; ... EXHAUST MANIFOLD PCM GM 305/350, #R028009 $ 269.00 Add to cart; Exhaust Manifold PCM ZR 6.0 liter (ZR engines from 2004-on), # R028023Sierra 18-4457 Exhaust Protector Valve. ... emp Exhaust Flapper Water Shutter & Grommets for Mercruiser 3.0L 3.7L 60930 18-2727 Please Read Item Description for Exact ... Discussion Starter · #1 · May 3, 2018 I had a Magnaflow exhaust put on my new truck this morning. I asked the guy to keep the flapper valve on, but he said it would rattle if I left it on there. I deferred to his experience and had it removed. AFM kicked in on the drive leaving the shop and the vibration is awful at highway speeds.Not to hijack the thread with another potential option, but I called Borla tech this afternoon and was informed they make a kit specifically for GM Performance Parts, 3" and 3.5" systems WITH a flapper valve, which eliminates ALL resonance. It's a single source agreement where the only option you have is to buy it from a GM dealer.Sierra 18-4457 Exhaust Protector Valve. 4.5 out of 5 stars 20. $32.48 $ 32. 48. Get it Thu, Jul 21 - Mon ... 2pcs Exhaust Flappers Water Shutters Kit 807166A1 for Many Mercruiser Stern Drive V8 Engines (Some V6 That Came with The Two Piece maniflold/Elbow) ... Mercury Marine/Mercruiser New OEM MANIFOLD KIT-EXHAUST 860246Q11 GM V8 1983-2002. 4.1 ...Oct 31, 2009 · Oct 31, 2009. #2. Re: Replace the exhaust flapper valve or not ? That flapper is there to help keep water from flowing backward thru the drive and exhaust and then into the engine from a sudden slow down, Or say, some A-hole has to run his skier right next to the beach your boat is beached on, and the wave that slams into your transom. New 2019 - 2022+ GMC Sierra and Chevrolet Silverado 6.2L trucks are nearly silent. I'm going to fix that with a Borla ProXS 40359 muffler. Furthermore these ... Joined Jul 30, 2017. 312 Posts. #5 · Aug 1, 2017. Mr. Lee said: Removing the flapper does not make it that much louder. No one else is going to notice but you. I would recommend a new exhaust. I think my plan is to replace the headers and ditch the flapper but keep the stock exhaust.For 5.7L engines, NuWave Marine has got you covered. Our full inventory of 5.0-5.7-6.2 manifolds includes MerCruiser 5.7 manifold replacement kits. The function of the manifold is to take spent gas from each cylinder and vent it into the exhaust system. A leaky gasket here or there could let water seep into your motor, thus destroying it. This is a New Exhaust Manifold that will fit the inline 6cyl , straight 6cyl GM, Chevrolet engine sizes , 194 , 230 , 250 , 292 , 4.1L , 4.8L. This is a universal flange that fits the 2-bolt and 3-bolt style flange.This exhaust manifold is for the NON INTEGRAL style head. This exhaust is not machined for the Heat Riser Assembly (the flapper valve), 350 Buick. Join Date: Nov 18, 2015. Location: Stephenson County, IL. Posts: 932. Exhaust flapper valve thing..... Yea, I don't know what this is called but it's a open/close valve between the exhaust manifold and the Y pipe. My old Dakota has one as well, that opens and closes as it should. The one on the Wagoneer (pass side) is rusted solid.www.glmmarine.com 11 MerCruiser Ref No. GLM No. OEM No. Description 1 2 3A 3B 4 5 6 6A 6B 7 8 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32Oct 31, 2009 · Oct 31, 2009. #2. Re: Replace the exhaust flapper valve or not ? That flapper is there to help keep water from flowing backward thru the drive and exhaust and then into the engine from a sudden slow down, Or say, some A-hole has to run his skier right next to the beach your boat is beached on, and the wave that slams into your transom. xo