My 98 GMC K2500 L29 7.4 litre has 2.5" true dual exhaust with pro Flowmax mufflers an X-Pipe, cat delete but still has both upstream and both downstream o2 sensors. At times I get a dtc for bank 1 and 2 too rich. Probably cause no cats. Truck has an Air Aid cold air induction, throttle body spacer, performance ignition wires with stock gm spark ... A dual exhaust system distributes a vehicle’s engine exhaust between two separate exit routes, usually ending in two separate mufflers. A single exhaust system sends all exhaust gasses through one exhaust path and muffler. If your engine has multiple cylinder banks (typical with six or more cylinders) and you have single exhaust, a “Y ... 1967-87 Chevy/GMC Truck. Small Block/Big Block. ... Exhaust Systems, Crossmember Back w/H-Pipe Exhaust System 75-87 GM Split Rear Dual Exit 2.5 in Intermediate. Part ... Sep 10, 2010 · Wanting to do a dual exhaust set up. I want to have cats, mufflers and an x pipe. Gonna go with 2.25" piping but not sure what kind of mufflers/cats to get. Also does anyone have a diagram of a dual exhaust set up, wondering how far up to put the x pipe. I want a deep tone but not too loud, and no popping or drone would be the best. Sep 10, 2010. Description. 1988-98 Chevy/GMC Truck long tube header kit. These headers feature 1-7/8" mandrel bent primary tubes that flow into 2-1/2" lead pipes. Includes high flow cats. This system connects directly to the stock exhaust using the included Y-pipe. Stainless Works Header Kits are built from corrosion resistant 304 stainless steel, our ... Silverado & Sierra Traction Bars 1988-18 (Standard Axle Position Trucks) Red. $294.99. Speed Engineeing LS Engine Motor Mounts (LS Conversion Swaps) Universal. $59.99. Speed Engineering Conversion Bracket Alternator & Power Steering Pump (Truck Engine) $109.99. Universal LS Steam Vent Kit (Stainless Steel) $109.99. Speed Engineering A Body LS Swap Kit 1964-1972. $189.99. Speed Engineering C1500 OBS LS Swap Kit 1988-1998 2WD. $189.99. LS Longtube Headers 1 7/8" C10 Trucks Universal (Swap, Conversion) LS1, LS2, LS3, LS6. $309.99. LS Exhaust Manifold Gaskets (GM LS1, LS2, LS3, LS6) $29.99. LS Conversion Swap Headers (Camaro, Chevelle, Nova) C10, K10, OBS Truck. Chevy GMC 1500 Truck 88-95 2.5" Dual Exhaust Kits Flowmaster Super 44 Slash Tip (Fits: 1992 Chevrolet C1500) $269.99. 97 sold. Chevy GMC 1500 88-95 Single 3" Truck ... Choose Speedway Motors for the highest quality 1994 Chevy K1500 Exhaust System Kits on the market. Here at Speedway Motors, we don’t carry cheap 1994 Chevy K1500 Cat Back Exhausts, we sell 1994 Chevy K1500 3 Inch Exhausts that fit your budget, without sacrificing on quality. Racers and Rodders choose us when they need a reliable 1994 Chevy ... Jun 6, 2023 · Header-Back Dual 2-1/2 in. Exhaust Kits With Mufflers. Note: Exhaust kit is designed for 1978-88 G-Body that was originally equipped with a SB-Chevy. Does not fit ANY Cutlass Supreme model. Designed for use with 555-640600 (TH350), 555-640601 (700R4) or 555-640603 (TH400) and header set 555-30060. Engine and transmission swaps may require some ... 1988-98 Chevy/GMC 1500 4wd extended cab, short bed 1500 (142" W.B.) long tube headers, 1.875" dia. primaries with 2.50" lead pipes and x-pipe with dual high flow metal matrix catalytic converters to fit Stainless Works True Dual Exhaust Systems P/N CT8898SE or CT8898UB. Sep 19, 2011 · ive had the single in and two out on the last 3 trucks ive owned only ran flow master 40 series. sounds great. cant tell the different between true duals and the single in and 2 out. only different is that true duals you have 2 free flowings exhausts not fighting each other to escape and less back pressure with the true duals. Motor Mounts. Speed Engineering C1500 OBS LS Swap Kit 1988-1998 2WD. $189.99. K1500 4WD Truck 2" Longtube Headers (LS Swap, Conversion) 1988-1998. $369.99. K1500 4WD Truck 1 7/8" Longtube Headers (LS Swap, Conversion) 1988-1998. $319.99. Universal 3" Exhaust Builder Kit "Deluxe" (304 Stainless) LS Engine Swap. Truck Exhaust Kits - Shop Line dual exhaust system 2.5" Aluminized pipe Flowmaster Super 44 Muffler 2.5" With Slash Cut Black Tips and Corner Exit for Silverado, Sierra, F-Series,& Ram 4.4 out of 5 stars 27 Truck Exhaust Kits - Shop Line dual exhaust system 2.5" Aluminized pipe Flowmaster Super 44 Muffler 2.5" With Slash Cut Black Tips and Corner Exit for Silverado, Sierra, F-Series,& Ram 4.4 out of 5 stars 27 Flowmaster. Flow FX Cat-Back Exhaust System. $715.95. Part# 718143. Add To Cart. flowmaster mufflers muffler sound comparison how to choose a muffler. Select The Right Flowmaster Muffler For Your Vehicle. Jeremy Stoermer. 07/12/2023. The standard stock exhaust system of a truck with a 318 engine is a single 2-1/2" pipe. This means that you will be getting an 80% increase in exhaust flow, increasing horsepower by up to 18%, improving fuel efficiency and low-end torque at the same time. Increases in fuel efficiency and horsepower are based on a truck operating at factory specs. Dec 13, 2019 · The exhaust that I used in this video. exhaust system kit fits: 1996-1999https://www.amazon.com/gp/product/B00M220CQG/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=... Exhaust System, Cat-back, FlowFX, 409 Stainless Steel, 4.50 in. Black Ceramic Tips, Dual Exit, Chevrolet, GMC, 5.7L, Kit. Part Number: FLO-717923 Not Yet Reviewed Jan 26, 2011 · The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1988 - 1998 GMT400 Chevy & GMC Pickups Message Board: true duals Nov 29, 2003 · i am wonderign if anyone has put true dual exhaust on a 88-98 chevy pickup. i guess they dont make a dual exhaust kit from what ive found on the internet. so i am wonderin if anyone made thier own or had a muffler shop make one. and if so how much did it cost? Exhaust System, Crossmember Back w/H-Pipe 67-74 GM Split Rear Dual Exit 2.5 in Int & Tail Pipe Muffler & Tip Not Incl Natural Finish 409 SS. Part Number: PYE-SGT78 Not Yet Reviewed Flowmaster. Flow FX Cat-Back Exhaust System. $715.95. Part# 718143. Add To Cart. flowmaster mufflers muffler sound comparison how to choose a muffler. Select The Right Flowmaster Muffler For Your Vehicle. Jeremy Stoermer. 07/12/2023. Oct 21, 2022 · A single 3" pipe system will flow approximately as good as a dual 2.5 system, with less expense and lower noise. Particularly with a TBI that doesn't have much RPM potential to begin with. Spend the money on a decent Y-pipe, that's where the real restriction is. The rest is largely "window dressing". Oct 22, 2022. #6. Jun 25, 2016 · 130195 · #2 · Jun 25, 2016. You can get a dual exhaust if you want to, without any problems (I run dual magnaflows myself). These GMT400's arn't that computer controlled as compared to modern cars that have sensors for everything. Reply. Save. Like. kennythewelder · #3 · Jun 25, 2016. Welcome to the forum. Mar 30, 2008 · According to that site, that setup gave better performance with the stock ecu settings. It stated that you may actually lose power if you dual it all the way back. They are right. Backpressure (from a certain exhaust design) is needed for proper 'scavenging', the spent fuel being drawn from cylinders. Speed Engineering A Body LS Swap Kit 1964-1972. $189.99. Speed Engineering C1500 OBS LS Swap Kit 1988-1998 2WD. $189.99. LS Longtube Headers 1 7/8" C10 Trucks Universal (Swap, Conversion) LS1, LS2, LS3, LS6. $309.99. LS Exhaust Manifold Gaskets (GM LS1, LS2, LS3, LS6) $29.99. LS Conversion Swap Headers (Camaro, Chevelle, Nova) C10, K10, OBS Truck. Apr 21, 2010 · Lil.Layher Discussion starter · Apr 21, 2010. Hey, I'm looking for a true dual exhaust system for my 86 Power Ram D250. I have only found one so that would fit a Dodge as old as mine and it was on ebay, and wasn't for a 3/4 ton like mine. The engine is a 318. If any one knows any where I can find one I would really appreciate if you could tell me. Apr 12, 2010 · Harry Canyon · #6 · Apr 16, 2010. My 91 4x4 has a "Semi-Loud" IMCO 2" in 2 1/2" Out muffler on it with pencil tips. It could be quieter, but overall has a nice tone. Grumbles at idle and screams at WOT. 1998 S10 4.3/Auto daily driver. 1984 S15 2.2 Diesel. 1988 S10 2.5 5-speed lowered 4/4. Reply. Save. The more oxygen available for combustion, the greater the horsepower and torque generated. Some high-performance upgrades, such as cold-air intakes, increase air inflow. A performance exhaust system does the opposite. It improves the outflow of dirty air, prevents backflow and creates a vacuum that “sucks” air into the combustion chamber ... 2007-2019 GMC Truck (2wd/4wd) 4.8L, 5.3L, 6.0L, 6.2L (Crew & Extra Cabs, Short Bed Only) (Will fit longer bed options by extending connection pipes) Note: "This system is designed to work with our 1 3/4" & 1 7/8" truck longtube headers only. It is not designed to work with any factory exhaust equipment". Note: This system works with 4, 6, & 8 ... Jul 8, 2022 · Designed to produce more horsepower at an affordable price; Fits 1996-1999 gm full-size truck 2wd/4wd with 5.7 l engine; Includes 3 pipes, muffler, hangers, clamps, muffler, gasket, and hardware Jun 25, 2016 · 130195 · #2 · Jun 25, 2016. You can get a dual exhaust if you want to, without any problems (I run dual magnaflows myself). These GMT400's arn't that computer controlled as compared to modern cars that have sensors for everything. Reply. Save. Like. kennythewelder · #3 · Jun 25, 2016. Welcome to the forum. Speed Engineering A Body LS Swap Kit 1964-1972. $189.99. Speed Engineering C1500 OBS LS Swap Kit 1988-1998 2WD. $189.99. LS Longtube Headers 1 7/8" C10 Trucks Universal (Swap, Conversion) LS1, LS2, LS3, LS6. $309.99. LS Exhaust Manifold Gaskets (GM LS1, LS2, LS3, LS6) $29.99. LS Conversion Swap Headers (Camaro, Chevelle, Nova) C10, K10, OBS Truck. May 29, 2008 · nickleahy23 Discussion starter · May 29, 2008. Well as of right now here is what i have. stock 95 350 (tbi spacer, injector spacer and CAI) with shorty headers, true 2.5" duals and bullets. it is dumped right after the cab. There is 0 backpressure and my low end has suffered as well as my mpg. The thing screams when the rpms's are high, but ... Sep 19, 2011 · ive had the single in and two out on the last 3 trucks ive owned only ran flow master 40 series. sounds great. cant tell the different between true duals and the single in and 2 out. only different is that true duals you have 2 free flowings exhausts not fighting each other to escape and less back pressure with the true duals. Apr 12, 2010 · Harry Canyon · #6 · Apr 16, 2010. My 91 4x4 has a "Semi-Loud" IMCO 2" in 2 1/2" Out muffler on it with pencil tips. It could be quieter, but overall has a nice tone. Grumbles at idle and screams at WOT. 1998 S10 4.3/Auto daily driver. 1984 S15 2.2 Diesel. 1988 S10 2.5 5-speed lowered 4/4. Reply. Save. Apr 12, 2010 · Harry Canyon · #6 · Apr 16, 2010. My 91 4x4 has a "Semi-Loud" IMCO 2" in 2 1/2" Out muffler on it with pencil tips. It could be quieter, but overall has a nice tone. Grumbles at idle and screams at WOT. 1998 S10 4.3/Auto daily driver. 1984 S15 2.2 Diesel. 1988 S10 2.5 5-speed lowered 4/4. Reply. Save. Nov 29, 2003 · i am wonderign if anyone has put true dual exhaust on a 88-98 chevy pickup. i guess they dont make a dual exhaust kit from what ive found on the internet. so i am wonderin if anyone made thier own or had a muffler shop make one. and if so how much did it cost? Truck Exhaust Kits - Shop Line dual exhaust system 2.5" Aluminized pipe Flowmaster Super 44 Muffler 2.5" With Slash Cut Black Tips and Corner Exit for Silverado, Sierra, F-Series,& Ram 4.4 out of 5 stars 27 Complete 2-1/4 in. Dual Exhaust Systems. Dynomax 2-1/4 in. Header and Manifold Back Dual Exhaust Systems are designed to perform with DynoMax headers or your stock factory manifolds. A special reducer design allows for just the right angle of bending flexibility for a variety of mounting requirements. Kits feature extra long 16-gauge tailpipes ... Flowmaster. Flow FX Cat-Back Exhaust System. $715.95. Part# 718143. Add To Cart. flowmaster mufflers muffler sound comparison how to choose a muffler. Select The Right Flowmaster Muffler For Your Vehicle. Jeremy Stoermer. 07/12/2023. Exhaust System, Crossmember Back w/H-Pipe 67-74 GM Split Rear Dual Exit 2.5" Int & Tail Pipe Race Pro Muffler/HW Incl, Natural Finish 409 SS. Part Number: PYE-SGT78R Not Yet Reviewed Nov 11, 2017 · Gibson® Swept Side™ Cat-Back Exhaust System with Single Side Exit. 0. # 1119831485. Chevy CK Pickup 1998, Swept Side™ Cat-Back Exhaust System with Single Side Exit by Gibson®. Exhaust System Type: Cat-Back. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive / Loud. Get increased horsepower and torque in the... Chevy Silverado/Sierra 2000-2006 SS 1500 , 1500HD & 2500HD w/ 6.0 or 8.1 V8 customizable Direct Fit Dual Exhaust Kit. $269.99. Compare. Apr 21, 2010 · Lil.Layher Discussion starter · Apr 21, 2010. Hey, I'm looking for a true dual exhaust system for my 86 Power Ram D250. I have only found one so that would fit a Dodge as old as mine and it was on ebay, and wasn't for a 3/4 ton like mine. The engine is a 318. If any one knows any where I can find one I would really appreciate if you could tell me. 1988-1995 Chevy/GMC Silverado-Sierra Exhaust System Hottexhaust. Dual stainless steel system, all mandrel bent 2.5 featuring free flow Stainless Core/ Finish mufflers. System allows your Silverado/Sierra to breathe, sound great and last for many years to come! Chevy GMC 1500 88-95 2.5" Dual Exhaust Kit Cherry Bomb Extreme Clamp Tips Corner (Fits: 1988 Chevrolet K1500) $319.99 88-93 Chevrolet GMC Truck 4.3 5.0 5.7 Dual Exhaust Mandrel - Cherry Bomb Extreme (Fits: 1988 Chevrolet K1500) 1999 Chevrolet C1500 5.7 Liter V8 - 141.5" Wheelbase, Dual Exhaust, Exits In Rear On Either Side Of License Plate; 1998 Chevrolet C1500 5.7 Liter V8 - 141.5" Wheelbase, Dual Exhaust, Exits In Rear On Either Side Of License Plate, w/ Federal Emissions; 1997-1996 Chevrolet C1500 5.7 Liter V8 - 141.5" Wheelbase, Dual Exhaust, Exits In Rear On Either Side Of License Plate; 1999 Chevrolet C2500 5.7 ... Dec 13, 2019 · The exhaust that I used in this video. exhaust system kit fits: 1996-1999https://www.amazon.com/gp/product/B00M220CQG/ref=ppx_yo_dt_b_asin_title_o05_s00?ie=... Aug 1, 2016 · I've got a 90 K1500 Silverado 5.7l V8 and I have to replace the exhaust system because I'm pretty sure the original is still there and in horrible condition. Ideally I would like to put headers with a true dual exhaust setup. My only issue is price is definitely a contributing factor. I've looked at the summit cat converters and thought about ... May 27, 2010 · Pros of a Dual Exhaust System. Increased Gas Mileage: The engine in a dual exhaust vehicle runs more efficiently and with less effort. This is achieved when there is less engine back pressure, and thus less wasted energy. The more efficient the engine, the slower the rate at which the fuel burns, which means that you don’t have to use as much ... Speed Engineering A Body LS Swap Kit 1964-1972. $189.99. Speed Engineering C1500 OBS LS Swap Kit 1988-1998 2WD. $189.99. LS Longtube Headers 1 7/8" C10 Trucks Universal (Swap, Conversion) LS1, LS2, LS3, LS6. $309.99. LS Exhaust Manifold Gaskets (GM LS1, LS2, LS3, LS6) $29.99. LS Conversion Swap Headers (Camaro, Chevelle, Nova) C10, K10, OBS Truck. Chevy GMC 1500 Truck 88-95 2.5" Dual Exhaust Kits Flowmaster Super 44 Slash Tip (Fits: 1988 Chevrolet C1500) $269.99. Free shipping. 65 sold. Oct 21, 2022 · A single 3" pipe system will flow approximately as good as a dual 2.5 system, with less expense and lower noise. Particularly with a TBI that doesn't have much RPM potential to begin with. Spend the money on a decent Y-pipe, that's where the real restriction is. The rest is largely "window dressing". Oct 22, 2022. #6. Aug 1, 2016 · I've got a 90 K1500 Silverado 5.7l V8 and I have to replace the exhaust system because I'm pretty sure the original is still there and in horrible condition. Ideally I would like to put headers with a true dual exhaust setup. My only issue is price is definitely a contributing factor. I've looked at the summit cat converters and thought about ... Silverado & Sierra Traction Bars 1988-18 (Standard Axle Position Trucks) Red. $294.99. Speed Engineeing LS Engine Motor Mounts (LS Conversion Swaps) Universal. $59.99. Speed Engineering Conversion Bracket Alternator & Power Steering Pump (Truck Engine) $109.99. Universal LS Steam Vent Kit (Stainless Steel) $109.99. Complete High Performance Dual Exhaust Systems with ... Complete High Performance ...1973-76 F100 F150 F250. Complete Inline 6 Cylinder ...1967-72 Chevy & GMC Truck • 1/2 Ton 3/4 Ton. Exhaust Header 1947-59 Chevy Truck. Exhaust Header 1960-62 Chevy Truck. Exhaust Manifolds 1997-14 F150 2004 Heritage 1997-99 F250. Exhaust System, Cat-back, FlowFX, 409 Stainless Steel, 4.50 in. Black Ceramic Tips, Dual Exit, Chevrolet, GMC, 5.7L, Kit. Part Number: FLO-717923 Not Yet Reviewed Aug 10, 2023 · They will be more lightweight in comparison to dual exhausts. The exhaust gas will have a higher velocity in relation to dual exhaust systems. Vehicles with smaller engine sizes typically feature single exhausts, while dual exhausts are usually found in vehicles with larger engines. Complete High Performance Dual Exhaust Systems with ... Complete High Performance ...1973-76 F100 F150 F250. Complete Inline 6 Cylinder ...1967-72 Chevy & GMC Truck • 1/2 Ton 3/4 Ton. Exhaust Header 1947-59 Chevy Truck. Exhaust Header 1960-62 Chevy Truck. Exhaust Manifolds 1997-14 F150 2004 Heritage 1997-99 F250. Mar 30, 2008 · According to that site, that setup gave better performance with the stock ecu settings. It stated that you may actually lose power if you dual it all the way back. They are right. Backpressure (from a certain exhaust design) is needed for proper 'scavenging', the spent fuel being drawn from cylinders. Sep 5, 2023 · Find 1988 CHEVROLET K1500 Exhaust Systems and get Free Shipping on Orders Over $109 at Summit Racing! ... Gibson Dual Sport Truck Exhaust Systems 65900 Exhaust, Dual ... Exhaust Flange Kit with Retaining Rings For Harley Davidson 1984-2023 Touring, Dyna, Softail, Sportster, Evolution Big Twin, Evolution, and Twin Cam Models, Heavy Duty by VANJOY (OEM Chrome) 249. Save 17%. $1499. Typical: $17.99. Lowest price in 30 days. FREE delivery Thu, Aug 31 on $25 of items shipped by Amazon. Find 1988 CHEVROLET C1500 Exhaust Systems and get Free Shipping on Orders Over $109 at Summit Racing! 1999 Chevrolet C1500 5.7 Liter V8 - 141.5" Wheelbase, Dual Exhaust, Exits In Rear On Either Side Of License Plate; 1998 Chevrolet C1500 5.7 Liter V8 - 141.5" Wheelbase, Dual Exhaust, Exits In Rear On Either Side Of License Plate, w/ Federal Emissions; 1997-1996 Chevrolet C1500 5.7 Liter V8 - 141.5" Wheelbase, Dual Exhaust, Exits In Rear On Either Side Of License Plate; 1999 Chevrolet C2500 5.7 ... 2007-2019 GMC Truck (2wd/4wd) 4.8L, 5.3L, 6.0L, 6.2L (Crew & Extra Cabs, Short Bed Only) (Will fit longer bed options by extending connection pipes) Note: "This system is designed to work with our 1 3/4" & 1 7/8" truck longtube headers only. It is not designed to work with any factory exhaust equipment". Note: This system works with 4, 6, & 8 ... 1988-98 Chevy/GMC 1500 4wd extended cab, short bed 1500 (142" W.B.) long tube headers, 1.875" dia. primaries with 2.50" lead pipes and x-pipe with dual high flow metal matrix catalytic converters to fit Stainless Works True Dual Exhaust Systems P/N CT8898SE or CT8898UB. Jul 8, 2022 · Designed to produce more horsepower at an affordable price; Fits 1996-1999 gm full-size truck 2wd/4wd with 5.7 l engine; Includes 3 pipes, muffler, hangers, clamps, muffler, gasket, and hardware .