2008 GMC Sierra Performance Exhaust Systems

Change Vehicle
1 - 60 of 450 results
show:
sort by:
    • Flowmaster® American Thunder™ Dual Cat-Back Exhaust System
      (0 reviews)
      # 23516675
      GMC Sierra 1500 4.8L / 5.3L 2008, American Thunder™ Dual Cat-Back Exhaust System by Flowmaster®. Without Heat Shield. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD sound (depends on application and exhaust...
      Available sound levels: Aggressive Sound / Moderate Sound (depends on application and exhaust type)Increases Power
      $539.97 - $744.97
    • Flowmaster® Force II™ Exhaust System
      (0 reviews)
      # 28760735
      GMC Sierra 2008, Force II™ Stainless Steel Exhaust System by Flowmaster®. The Force II Series is designed for a moderate or mild performance tone experience (depends on application and exhaust type), suitable for everyday street...
      Available sound levels: Mild Sound / Mild - Moderate Sound (depends on application and exhaust type)Increases Power
      $444.36 - $722.97
    • MagnaFlow® Black Series Filter-Back Exhaust System
      (0 reviews)
      # 20209687
      GMC Sierra 6.6L Extended Cab / Crew Cab 2008, Black Series Stainless Steel Filter-Back Exhaust System by MagnaFlow®. MODERATE TO AGGRESSIVE SOUND. These premium line exhaust systems for diesels with particulate filters include...
      Moderate - Aggressive SoundBuilt In Stainless Steel For Durability
      $464.04 - $932.86
    • MagnaFlow® MagnaFlow Series DPF-Back Exhaust System
      (0 reviews)
      # 20209683
      GMC Sierra 6.6L Extended Cab / Crew Cab 2008, MagnaFlow Series Stainless Steel DPF-Back Exhaust System by MagnaFlow®. MODERATE TO AGGRESSIVE SOUND. These premium line exhaust systems for diesels without particulate filters include...
      Built In Stainless Steel For DurabilityTuned, Powerful Exhaust Sound
      $498.30 - $822.11
    • MagnaFlow® Off-Road Pro Series Cat-Back Exhaust System
      (0 reviews)
      # 20209660
      GMC Sierra 4.3L / 4.8L / 5.3L 2008, Off-Road Pro Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®. MODERATE TO AGGRESSIVE SOUND. Turn Down In Front Of Rear Tire Exit. 3" Tubing. 5" Height x 5" Width x 14" Length...
      Moderate - Aggressive SoundDesigned for Serious Off Road Racing
      $505.29
    • MagnaFlow® Pro Series DPF-Back Exhaust System
      (0 reviews)
      # 20209690
      GMC Sierra 6.6L Extended Cab / Crew Cab 2008, Pro Series DPF-Back Exhaust System by MagnaFlow®. MODERATE TO AGGRESSIVE SOUND. Without Mufflers. These entry level performance diesel systems feature 100% stainless steel satin finish...
      Moderate - Aggressive SoundBuilt In Aluminized Steel For Durability
      $228.46 - $663.48
    • MagnaFlow® Street Series Cat-Back Exhaust System
      (0 reviews)
      # 20209672
      GMC Sierra 2008, Street Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®. MODERATE SOUND. The Street Series is designed for customers seeking increased performance and better economy, combined with a powerful and well...
      Moderate SoundDelivers More Horsepower
      $716.11 - $831.67
    • Borla® Touring™ Stainless Steel Single Cat-Back Exhaust System
      (1 reviews)
      # 58887434
      GMC Sierra 4.8L / 5.3L / 6.0L 2008, Touring™ Stainless Steel Single Cat-Back Exhaust System by Borla®, MILD GROWL SOUND. When you want the best performing, best sounding, and highest quality exhaust system, you want Borla. Borla...
      Mild Growl SoundHorsepower and torque increased by 7 – 10%
      $586.99 - $892.99
    • Gibson® Cat-Back Exhaust System
      (1 reviews)
      # 3734510
      GMC Sierra 2008, Cat-Back Exhaust System by Gibson®, AGGRESSIVE SOUND. Get increased horsepower and torque in the rpm range where you need it most, with this Swept Side Cat-Back Exhaust System. This Gibson exhaust system makes...
      Less restriction for increased exhaust flowIncrease of 10-15 horsepower and pound feet of torque
      $387.55 - $670.86
    • Gibson® Dual Sport™ Cat-Back Exhaust System
      (0 reviews)
      # 3731113
      GMC Sierra 2008, Dual Sport™ Cat-Back Exhaust System by Gibson®, AGGRESSIVE SOUND. Behind Rear Tire Exit. Polished Stainless Round Slash Cut Tips Get increased horsepower and torque in the rpm range where you need it most, along...
      Increase of 10-15 horsepower and pound feet of torqueDeep, Commanding Exhaust Tone
      $466.36 - $721.03
    • Gibson® Extreme Dual™ Cat-Back Exhaust System
      (0 reviews)
      # 3731776
      GMC Sierra 2008, Extreme Dual™ Cat-Back Exhaust System by Gibson®, AGGRESSIVE SOUND. Behind Each Rear Tire Exit. Polished Stainless Round Slash Cut Tips When you’re ready to take your truck to the next level, get the Dual...
      Dyno tuned for each applicationLess restriction for increased exhaust flow
      $466.36 - $721.03
    • Gibson® Metal Mulisha™ Stainless Steel Cat-Back Diesel Exhaust System
      (0 reviews)
      # 58237498
      GMC Sierra 6.6L Long Bed 2008, Metal Mulisha™ Stainless Steel Cat-Back Diesel Exhaust System by Gibson®, AGGRESSIVE SOUND. 4" Tubing. Passenger Side Behind Rear Tire Exit. 5" Inlet / 8" Outlet, 18" Length Black Ceramic Round...
      Constructed for maximum horsepower and torque gainMandrel bent pipes provide improved exhaust flow
      $557.60
    • Gibson® Metal Mulisha™ Stainless Steel Cat-Back Exhaust System
      (0 reviews)
      # 78893331
      GMC Sierra 4.8L / 5.3L 2nd Generation with AFM Short Bed / Standard Bed 2008, Metal Mulisha™ Stainless Steel Cat-Back Exhaust System by Gibson®, AGGRESSIVE SOUND. 4" Tubing. Passenger Side Behind Rear Tire Exit. 4" Inlet / 6"...
      Creates a deep, aggressive toneConstructed for maximum horsepower and torque gain
      $557.60
    • Gibson® Split Rear™ Cat-Back Exhaust System
      (0 reviews)
      # 3732630
      GMC Sierra 2008, Split Rear™ Cat-Back Exhaust System by Gibson®, AGGRESSIVE THROATY SOUND. Straight Out The Back Exit. Polished Stainless Round Slash Cut Tips Get increased horsepower and torque in the rpm range where you need it...
      Increase of 10-15 horsepower and pound feet of torqueAggressive, throaty exhaust tone
      $466.36 - $721.03
    • Gibson® Super Truck™ Cat-Back Exhaust System
      (1 reviews)
      # 3733021
      GMC Sierra 4.8L / 5.3L 2nd Generation with AFM Short Bed / Standard Bed 2008, Super Truck™ Cat-Back Exhaust System by Gibson®. 2.5" Tubing. In Front of Rear Tire Exit. 2" Inlet / 6" x 2.75" Outlet, 6" Length Polished Stainless...
      Increase of 15-20 HorsepowerLoud Performance Exhaust Tone; may exceed 95 decibels
      $387.55 - $432.63
    • Gibson® Swept Side™ Cat-Back Diesel Exhaust System
      (0 reviews)
      # 7600498
      GMC Sierra Diesel Long Bed 2008, Swept Side™ Cat-Back Diesel Exhaust System by Gibson®. 4" Tubing. Flange Connection (To The Converter). Behind Rear Tire Exit. 4" Inlet / 5" Outlet, 12" Length Polished Stainless Round Slash Cut...
      Less restriction for increased exhaust flowIncrease of up to 32 Horsepower and 60 pound feet of torque, depending on application
      $438.47 - $520.88
    • Corsa® 304 Stainless Steel Cat-Back Exhaust System
      (0 reviews)
      # 1520690
      GMC Sierra 143.5" Wheelbase 2008, 304 Stainless Steel Cat-Back Exhaust System by Corsa®. 3" Tubing. The patented Reflective Sound Cancellation (RFC) technology provides a unique combination of a Reserved, Distinctive Performance...
      Reserved but Distinctive Performance ToneStraight-Through Nonrestrictive Design for Improved Performance and Fuel Economy
      $978.72 - $1,313.03
    • MBRP® Installer Series™ Cat-Back Exhaust System
      (1 reviews)
      # 3694687
      GMC Sierra 2008, Installer Series™ Cat-Back Exhaust System by MBRP®, MODERATE SOUND. 3" Tubing. The Installer Series from MBRP brings you the best in high-quality construction: these reasonably-priced systems are manufactured on...
      Boosts horsepower and torqueMellow, authoritative exhaust note
      $339.99 - $439.99
    • MBRP® Performance Series™ Cat-Back Exhaust System
      (0 reviews)
      # 36201054
      GMC Sierra 1500 WT 4.8L / 5.3L Short Bed 2008, Performance Series™ Cat-Back Exhaust System by MBRP®, MODERATE SOUND. 3" Tubing. Single Side Exit. Get more out of your turbodiesel pickup with a Performance Series exhaust system...
      Authoritative exhaust noteSingle side exit behind passenger-side rear tire
      $299.99
    • MBRP® XP Series™ 409 SS Cat-Back Exhaust System
      (0 reviews)
      # 3694945
      GMC Sierra 2008, XP Series™ 409 SS Cat-Back Exhaust System by MBRP®, MODERATE SOUND. 3" Tubing. The XP series exhausts from MBRP is for the no-compromise enthusiast who insists on a rugged system that can take whatever the road...
      Mellow, authoritative exhaust noteConstructed entirely of T409 stainless steel
      $464.99 - $539.99
    • Banks® Monster™ Exhaust System
      (0 reviews)
      # 45909438
      GMC Sierra 2008, Monster™ Exhaust System by Banks®. Improve performance and economy with a Banks Monster Exhaust system. Increased pipe size is only part of it. Banks uses constant-diameter mandrel bending to keep their stainless...
      Large-diameter stainless steel pipes and muffler6" x 5" polished 304 stainless exhaust tip
      $359.47 - $946.97
    • dB® Sport Polished Stainless Steel Cat-Back Exhaust System
      (0 reviews)
      # 86730997
      GMC Sierra 2008, Sport Polished Stainless Steel Cat-Back Exhaust System by dB®. 3" Tubing. 4" Slash-Cut Polished Tip. The dB exhaust systems are unique in their combination of an aggressive, growling exterior sound and absence of...
      $654.58 - $829.12
    • CGS® Cat-Back Exhaust System
      (0 reviews)
      # 1465562
      GMC Sierra Short Bed 2008, Cat-Back Exhaust System by CGS®. Get more power, improved performance, increased mileage and throaty sound in a bolt-on package. With the CGS Cat-Back Exhaust System you get all this and a complete...
      Dyno proven gains in horsepower and torqueImproved performance
      $314.25 - $464.25
    • RBP® Power Series Cat-Back Exhaust System
      (0 reviews)
      # 42554336
      GMC Sierra 2008, Power Series Cat-Back Exhaust System by RBP®. RBP's Cat-Back exhaust system is made of mandrel-bent stainless steel tubing. The system includes all parts of the exhaust system behind the catalytic converter. It is...
      Made in Stainless Steel for DurabilityLowers Exhaust Gas Temperature
      $1,200.00 - $1,450.00
    • aFe® ATLAS Down-Pipe Back Exhaust System
      (0 reviews)
      # 6875443
      GMC Sierra 2500 HD / 3500 HD 6.6L LMM 2008, ATLAS Down-Pipe Back Exhaust System by aFe®. The ATLAS Exhaust System channels the exhaust from the engine to the rear of the vehicle on a racing diesel engine truck. It has the least...
      The least restriction for maximum airflowIncreases horsepower and torque
      $345.00 - $495.00
    • aFe® Mach Force XP Exhaust System
      (0 reviews)
      # 1066977
      GMC Sierra 2008, Mach Force XP Exhaust System by aFe®. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Mach Force XP Exhaust System. aFe dyno tests every...
      Up to 29% Greater Exhaust Flow than stock systemIncreases horsepower and torque
      $449.00 - $885.00
    • Pypes® 409 SS Cat-Back Exhaust System with Violator Muffler
      (0 reviews)
      # 68924800
      GMC Sierra 1500 2008, 409 SS Cat-Back Exhaust System with Violator Muffler by Pypes®. Includes Violator Muffler. Want that rumble when you start up your truck? How about that growl when you step on the gas and run along side a...
      409 stainless tubing, muffler, clamps and hangersBetter fuel economy
      $479.99
    • DynoMax® Ultra Flo™ Cat-Back Welded Exhaust System
      (0 reviews)
      # 18222935
      GMC Sierra 2008, Ultra Flo™ Cat-Back Welded Exhaust System by DynoMax®. Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. This cat-back exhaust system includes pipes, clamps, tip, and includes the Ultra Flo...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueUltra Flo Welded muffler will give your car a deep performance tone
      $293.59 - $424.13
    • DynoMax® Ultra Flo™ Stainless Steel DPF-Back Welded Exhaust System
      (0 reviews)
      # 18216421
      GMC Sierra 6.6L 2008, Ultra Flo™ Stainless Steel DPF-Back Welded Exhaust System by DynoMax®. Angle Exit. 5" Tubing. 14" Stainless Steel Slant Cut Cooling Tip. Dyno proven to flow up to 2,000 SCFM and support up to 2,000...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueUltra Flo Welded muffler will give your car a deep performance tone
      $422.68
    • DynoMax® VT™ Stainless Steel Cat-Back Exhaust System
      (0 reviews)
      # 18223436
      GMC Sierra 4.8L / 5.3L 2008, VT™ Stainless Steel Cat-Back Exhaust System by DynoMax®. Angle Exit. 3" Tubing. With U-Bolt Pipe. This cat-back exhaust system includes pipes, clamps, tip, and revolutionary DynoMax VT performance...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueExclusive DynoMax Valve Technology delivers on-demand, drone-free performance and sound
      $282.28 - $309.45
    • Diamond Eye® Exhaust System
      (0 reviews)
      # 15960498
      GMC Sierra Extended Cab / Crew Cab / Regular Cab 6.6L 2008 Exhaust System by Diamond Eye®. Includes Exhaust Pipe, Clamps, Vented Stainless Steel Tip. This products is created for those who are not afraid of the power. It is...
      The finest quality at a great priceOE quality parts from top original equipment and aftermarket manufacturers
      $200.56 - $325.91
    • Ansa® Silverline™ 409 SS Single DPF-Back Exhaust System (5" Tubing)
      (0 reviews)
      # 80697923
      GMC Sierra 6.6L 2008, Silverline™ 409 SS Single DPF-Back Exhaust System by Ansa®. Tubing: 5". Offering one of the broadest selections of exhaust upgrades for the Light Diesel Truck market, Silverline™ Systems are available in...
      Dyno-proven Horsepower and Torque GainsReduces Back Pressure
      $447.19
    • Flowmaster® Scavenger Series 4-1 One-Piece Style Shorty Elite Headers
      (0 reviews)
      # 1264157
      GMC Sierra 1500 4.8L / 5.3L / 6.0L 2008, Scavenger Series 4-1 One-Piece Style Ceramic Coated Shorty Elite Headers by Flowmaster®. Sema Emissions Code: 1. High Temperature Ceramic Coating. Inlet Port Shape: Round. Outlet Diameter:...
      Increases horsepower and torqueImproves engine efficiency and throttle response
      $599.00
    • Gibson® Performance Header
      (1 reviews)
      # 3729194
      GMC Sierra without EGR without Air Injection 2008, Performance Header by Gibson®. Let your engine breathe and gain power and performance with Gibson Performance Headers. These headers will flow much more exhaust than your...
      Increases low and mid-range horsepower and torqueIncreases engine efficiency
      $476.50 - $656.89
    • Banks® TorqueTube™ Exhaust Manifold System
      (0 reviews)
      # 3145707
      GMC Sierra W/O Air Injection 2008, TorqueTube™ Exhaust Manifold System by Banks®. Includes Intake, TransferTube, Air Filter, Filter Housing, Head Shield, Exhaust Manifolds, Y-Pipe, Muffler, Exhaust. Cast OEM exhaust manifolds...
      Shorty style fits in stock engine bayStainless steel for long service life
      $586.07
    • BBK® CNC-Series™ Headers with Air Fitting Connectors
      (0 reviews)
      # 79636978
      GMC Sierra 6.0L 2008, Exhaust Headers with Air Fitting Connectors by BBK®. 1.75" Diameter. Full length headers increase exhaust flow and provide optimal cylinder scavenging for improved power and performance. CAD designed and dyno...
      Dyno testing results show a typical increase of 15-20 horsepower at the rear wheelsDeveloped using CAD (Computer Aided Design) software
      $369.99 - $469.99
    • aFe® Twisted Steel Headers without Catalytic Converters
      (0 reviews)
      # 46178581
      GMC Sierra 1500 4.8L / 5.3L / 6.0L Vortec 2008, Twisted Steel Headers without Catalytic Converters by aFe®. The new Twisted Steel performance header from aFe Power is redefining the header industry with the new pulse control...
      Optimized Tube Lengths Improve Flow and Performance100% hand MIG-welded construction ensures optimal strength and durability
      $795.00
    • Dynatech® SuperMAXX Stainless Steel Headers
      (0 reviews)
      # 61930417
      GMC Sierra 2008, SuperMAXX Stainless Steel Headers by Dynatech®. 1 Pair. SuperMAXX Stainless Long Tube Headers are an excellent way to bolt on Hp and Ft. Lbs. of Tq. to your vehicle. Although a tune is recommended, these power...
      $852.99
    • PaceSetter® Mild Steel Exhaust Header
      (0 reviews)
      # 81960587
      GMC Sierra 1500 2008, by PaceSetter®. Mild Steel. Manufactured using mandrel-bent, 16-gauge mild steel tubing and port-matched, CNC-machined, 3/8"-thick head flanges. They are designed for the best combination of ease of...
      $256.71 - $580.31
    • Flowmaster® Direct Fit Stainless Steel Catalytic Converter with Ceramic Substrate
      (0 reviews)
      # 34451175
      GMC Sierra 1500 2008, Direct Fit Stainless Steel Catalytic Converter by Flowmaster®. 2.5" Inlet / 3" Outlet. Body Length: 40". Body Width: 30". Substrate Material: Ceramic. Inlet Connection Type: Flanged. Outlet Connection Type:...
      Exceed all federal emission standardsStainless Steel shells
      $511.00
    • MagnaFlow® Direct Fit California OBDII Catalytic Converter
      (0 reviews)
      # 62247105
      GMC Sierra with LEV2 LEV Specification 2008, Direct Fit California OBDII Catalytic Converter by MagnaFlow®. 3" Tubing Diameter. If your car needs replacement, install one that will get you through the smog check and give you more...
      Increases exhaust flow compared to original factory converterIncreased exhaust flow allows your engine to make more power
      $1,380.93 - $1,514.91
    • MagnaFlow® Direct Fit Federal OEM Grade Catalytic Converter
      (0 reviews)
      # 61588733
      GMC Sierra 2008, Direct Fit Federal OEM Grade Catalytic Converter by MagnaFlow®. If your car needs replacement, install one that will get you through the smog check and give you more horsepower. This converter will directly replace...
      Converter body manufactured from heavy-duty stainless steelIncreases exhaust flow compared to original factory converter
      $678.78 - $841.48
    • PaceSetter® Stainless Steel Direct Fit Catalytic Converter
      (0 reviews)
      # 81958668
      GMC Sierra 1500 2008, Undercar Direct Fit Catalytic Converter by PaceSetter®. Stainless Steel. Custom Engineered to deliver maximum performance and efficiency from your engine with durability andease of installation.
      $804.89
    • Banks® Monster™ Stainless Steel Round Muffler
      (0 reviews)
      # 26049867
      GMC Sierra 6.6L 2008, Monster™ Stainless Steel Round Muffler by Banks®, 4" Inlet / 4" Outlet Diameter. 19.7" / 8" / 8" Body Length / Width / Height. Single Center Inlet / Single Center Outlet. 10" Wide. Get increased power and...
      $275.61
    • DynoMax® Race Series Muffler
      (0 reviews)
      # 18215747
      GMC Sierra 6.6L 2008, Race Series Stainless Steel Round Muffler by DynoMax®. 5" Inlet / 5" Outlet. 16" Body Length, 6" Body Width, 6" Body Height. CRF Technology which helps provide up to a 4 dbA sound reduction, on most race...
      Unrestricted, straight-through design for a dyno tested and track proven increase in horsepower and torqueEngineered to provide a deep race sound
      $77.29
    • DynoMax® Ultra Flo™ Muffler
      (0 reviews)
      # 18223336
      GMC Sierra 2008, Ultra Flo™ Stainless Steel Oval Muffler by DynoMax®. Dyno proven to flow up to 2 SCFM and support up to 2 horsepower. This muffler features straight-through design for unrestricted exhaust flow and a dyno-proven...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueEngineered to give your car a deep performance tone
      $115.44 - $127.64
    • DynoMax® VT™ Muffler
      (0 reviews)
      # 51847497
      GMC Sierra 4.8L / 5.3L 134.0" Wheelbase / 143.5" Wheelbase 2008, VT™ Stainless Steel Oval Muffler by DynoMax®. 3" Center Inlet / 3" Offset Outlet. 14" Body Length, 9.75" Body Width, 4.5" Body Height. No Reversible. The...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueExclusive DynoMax Valve Technology delivers on-demand, drone-free performance and sound
      $93.60
    • aFe® Exhaust Tip
      (1 reviews)
      # 1066710
      GMC Sierra 2500 HD / 3500 6.6L Turbocharged 2008, Exhaust Tip by aFe®. This stylish exhaust tip will be the finishing touch for any exhaust system. Made of the finest stainless steel, it's available in a highly polished finish or...
      $65.00
    • DynoMax® Exhaust Tip
      (0 reviews)
      # 18218414
      GMC Sierra 2008, Polished Exhaust Tip by DynoMax®. Includes Stainless Steel Clamps. These clamp-on stainless steel exhaust tips come in a variety of styles and sizes to make it easy for you to bolt on a custom look. Available in...
      304 Stainless Steel construction for longevity and corrosion resistanceMirror Polished for a show-like shine
      $34.75 - $39.72
    • MBRP® Black Aluminized Steel Diesel Downpipe
      (0 reviews)
      # 3696187
      GMC Sierra 2500 HD / 3500 HD Duramax 6.6L 2008, Black Aluminized Steel Diesel Downpipe by MBRP®, 3" Diameter. This large-diameter downpipe is the ultimate in free-flowing exhaust. Connecting directly to the turbine outlet, it makes...
      4" diameter throughout, with smooth, constant-diameter bendsShortens turbo lag
      $119.99
    • aFe® ATLAS Exhaust Race Pipe
      (0 reviews)
      # 1066564
      GMC Sierra 6.6L Turbocharged 2008, ATLAS Exhaust Race Pipe by aFe®. Eliminate the restrictive DPF and/or Cat for better performance with the DPF Delete Pipe and Down Pipe / Cat Delete Pipe. Factory type connections allow you to...
      Eliminates restriction for maximum airflowWorks with factory exhaust system
      $245.00 - $275.00
    • aFe® Mach Force XP DPF-Delete Exhaust Race Pipe
      (0 reviews)
      # 1066803
      GMC Sierra 2500 HD / 3500 6.6L LMM 2008, Mach Force XP DPF-Delete Exhaust Race Pipe by aFe®. Eliminate the restrictive DPF for better performance with these DPF-Delete Pipes. Factory type connections allow you to return to stock...
      Eliminates restriction for maximum airflowWorks with factory exhaust system
      $275.00 - $295.00
    • Dynatech® SuperMAXX Stainless Steel Intermediate Tubes
      (0 reviews)
      # 61930422
      GMC Sierra 2008, SuperMAXX Stainless Steel Intermediate Tubes by Dynatech®. Sold as kit.
      $542.99 - $642.99
    • DynoMax® Intermediate Pipe
      (0 reviews)
      # 18222049
      GMC Sierra 2008, Intermediate Pipe by DynoMax®. With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to complete the exhaust job. Every component is manufactured from...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      $50.87 - $90.44
    • DynoMax® Tail Pipe
      (0 reviews)
      # 18219954
      GMC Sierra 2008, by DynoMax®. With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to complete the exhaust job. Every component is manufactured from quality materials and...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      $15.57 - $68.72
    • DynoMax® Tail Pipe
      (0 reviews)
      # 51932178
      GMC Sierra 2008, Tail Pipe by DynoMax®. With their great selection of exhaust pipes and accessories, DynoMax will provide you with everything necessary to complete the exhaust job. Every component is manufactured from quality...
      Designed to ensure unrestricted exhaust flowDirect fit – no modifications needed to install
      $26.19 - $177.72
    • Diamond Eye® Exhaust Pipe
      (0 reviews)
      # 15960505
      GMC Sierra 6.6L 2008 Exhaust Pipe by Diamond Eye®. This products is created for those who are not afraid of the power. It is fine-tuned to deliver unrestricted power and tested against competition for maximum performance. The...
      The finest quality at a great priceOE quality parts from top original equipment and aftermarket manufacturers
      $43.38 - $144.55
    • PaceSetter® Steel Off-Road Y-Pipe Kit
      (0 reviews)
      # 81958690
      GMC Sierra 4.8L / 5.3L 2008, Steel Off-Road Y-Pipe Kit by PaceSetter®.
      $222.87
    • DynoMax® Hanger
      (0 reviews)
      # 18217921
      GMC Sierra 6.0L 2008, Silver Hanger by DynoMax®. DynoMax has you covered with a full line of accessories and hardware needed to do the complete exhaust job, from clamps to hangers. These small yet essential parts are available in a...
      Designed to do the exhaust job quickly and easilyOE-style fit, design, and finish
      $21.15 - $22.08
    • DynoMax® Mounting Kit
      (0 reviews)
      # 52153892
      GMC Sierra 4.8L / 5.3L 143.5" Wheelbase 2008, Mounting Kit by DynoMax®. Driver Side. Hardware and accessories are manufactured to work seamlessly with all Dynomax performance parts, making installation quick and easy. DynoMax has...
      Designed to do the exhaust job quickly and easilyOE-style fit, design, and finish
      $34.05




    Guides & Articles

    • Performance Parts
      Engines have often been compared to air pumps, because the engine that’s most efficient in terms of economy and power is the one that can get air in and out of its cylinders the easiest. That’s why most performance modifications like conical air filters, cold air intake systems, headers, and cat-back exhaust systems are aimed at making the intake and exhaust systems less restrictive. These parts increase the flow of air into the engine and ease the flow of exhaust gas out of the engine. Among these components, headers may be the most difficult to install. In this article, we’ll discuss what headers do, their different types, and how much performance they can add to your car.
    • Performance Parts
      You may be wondering why so many aftermarket performance exhaust system manufacturers are offering dual exhaust systems connected by "H-pipe" or "X-pipe" sections. After all, aren't two separate pipes, or so-called "true duals", the best for performance? The answer is no, but to understand why we have to examine how a typical internal combustion engine works.
    • Performance Parts
      It's an age-old question that many have asked. Will an aftermarket exhaust be worth the expense? While they definitely can be, an important question to ask yourself is do you care more about the deeper sound they’re designed to produce, or the added performance gained from being less restrictive? As car enthusiasts, we’ve become accustomed to associating the sound of a car with its exhaust. After all, doesn’t everyone have a childhood memory or two of a car and the particular sound it made?
    • Performance Parts
      Regardless of whether you're shopping for a simple replacement muffler that delivers original equipment (OE) sound and performance or an upgraded muffler which provides a deeper growl with increased power through freer exhaust flow, you'll see choices between "direct fit" mufflers and "universal" mufflers. In this article, we'll help you understand the differences between these two styles so you can make a more informed purchase.

    Popular Products

    2008 GMC Sierra Performance Exhaust Systems Reviews

    Average rating:  4.5  4.5 - 1 reviews
    4.5 of 5
    Great Product!
    This system sounds awesome. Was a breeze to install, only took 1 and 1/2 hours in the driveway. Spent the rest of the day cruising around and listening to the deep aggressive sound without sounding like a farm kids truck. New happy Borla customer! Jeff
    JPosted by Jeff (Saskatoon, SK) /
    2008 GMC Sierra
    Was this review helpful for you? Yes1   people found this review helpful.
    Related 2008 GMC Sierra Pages
    2008 GMC Sierra Models
    SECURE SHOPPING

    All manufacturer names, symbols, and descriptions, used in our images and text are used solely for identification purposes only.
    It is neither inferred nor implied that any item sold by CARiD.com, is a product authorized by or in any way connected with any vehicle manufacturers displayed on this page.