2003 GMC Sierra Performance Exhaust Systems

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    • (1 review)
      # 30824333
      GMC Sierra 2003, American Thunder™ Exhaust System by Flowmaster®. Muffler Quantity: Single. American Thunder gives you the classic AGGRESSIVE, MODERATE or MILD sound (depends on application and exhaust type) of a Flowmaster...
      High Quality Performance SoundIncreases Power
      $430.97 - $791.63
    • (0 reviews)
      # 23234937
      GMC Sierra 2003, Force II™ Single Cat-Back Exhaust System with Tip by Flowmaster®. Exhaust Type: Cat-Back. Muffler Quantity: Single. Exit Location: Single Side Exit. Without Heat Shield. The Force II Series is designed for a...
      Available sound levels: Mild Sound / Mild - Moderate Sound (depends on application and exhaust type)Increases Power
      $380.97 - $792.68
    • (0 reviews)
      # 20209444
      GMC Sierra 6.6L 2003, Black Series Stainless Steel Diesel Exhaust System with Tips by MagnaFlow®. Tip Material: Stainless. Muffler Sound: MODERATE. Finish: Black Coated. Exhaust Pipe Material: Stainless Steel. Muffler Quantity:...
      Moderate - Aggressive SoundBuilt In Stainless Steel For Durability
      $693.95 - $1,090.25
    • (2 reviews)
      # 20209406
      GMC Sierra 6.6L Extended Cab / Crew Cab 2003, Custom Builder Downpipe-Back Diesel Exhaust System by MagnaFlow®. Muffler Sound: MODERATE. Exhaust Inlet Connection Type: Clamp On. Exhaust Type: Downpipe-Back. Muffler Quantity:...
      Moderate - Aggressive SoundIncludes All Tubing Clamps and Hangers For Custom Exhaust System
      $327.79 - $736.52
    • (1 review)
      # 20209473
      GMC Sierra 78.0" Bed 2003, MagnaFlow Series Stainless Steel Cat-Back Exhaust System with Tip by MagnaFlow®. Tip Material: Stainless. Muffler Sound: MODERATE. Finish: Stainless. Exhaust Pipe Material: Stainless Steel. Exhaust Type:...
      Built In Stainless Steel For DurabilityTuned, Powerful Exhaust Sound
      $661.69 - $746.92
    • (0 reviews)
      # 20209432
      GMC Sierra 6.6L 2003, MagnaFlow Series Stainless Steel Diesel Exhaust System with Tip by MagnaFlow®. Tip Material: Stainless. Muffler Sound: MODERATE. Finish: Stainless. Exhaust Pipe Material: Stainless Steel. Muffler Quantity:...
      Built In Stainless Steel For DurabilityTuned, Powerful Exhaust Sound
      $587.15 - $954.52
    • (1 review)
      # 110091749
      GMC Sierra 6.6L Crew Cab 2003, Off-Road Pro Series Stainless Steel Diesel Exhaust System with Tip by MagnaFlow®. Tip Material: Stainless. Muffler Sound: AGGRESSIVE. Exit Location: Turn Down In Front Of Rear Tire Exit. Exit...
      Moderate - Aggressive SoundDesigned for Serious Off Road Racing
      $348.69 - $376.43
    • (0 reviews)
      # 20209463
      GMC Sierra 6.6L 2003, Pro Series Diesel Exhaust System by MagnaFlow®. Muffler Sound: MODERATE. Muffler Quantity: Single. Muffler Body Shape: Round. These entry level performance diesel systems feature 100% stainless steel satin...
      Moderate - Aggressive SoundBuilt In Aluminized Steel For Durability
      $289.18 - $835.01
    • (0 reviews)
      # 20209426
      GMC Sierra 6.6L 2003, XL Series Stainless Steel Cat-Back Diesel Exhaust System with Tip by MagnaFlow®. Tip Material: Stainless. Muffler Sound: MODERATE. Exit Location: Single Passenger Side Rear Exit. Exit Quantity: Single. Finish:...
      Moderate - Aggressive SoundBuilt In Stainless Steel For Durability
      $539.06
    • (0 reviews)
      # 58887429
      GMC Sierra 1500 78.0" Bed 2003, Touring™ Stainless Steel Cat-Back Exhaust System by Borla®. Muffler Sound: MILD TONE. Muffler Series: Touring™. System Type: Cat-Back. Exit Configuration: Single. Exhaust Pipe Material: Stainless...
      Mild Growl SoundHorsepower and torque increased by 7 – 10%
      $592.99 - $899.99
    • (0 reviews)
      # 114408927
      GMC Sierra 2003, Deegan 38™ Exhaust System by Gibson®. Exhaust Material: Stainless Steel. Exhaust Type: Cat-Back. Exit Configuration: Dual. Exit Location: Exit Behind Rear Tire. Finish: Polished. Muffler Series: Superflow™. Tip...
      409L Stainless Steel Heavy Duty TubingMandrel Bent Tubing
      $671.92 - $784.77
    • (0 reviews)
      # 98682255
      GMC Sierra 2003, Dual Sport™ Exhaust System by Gibson®. Exhaust Type: Cat-Back. Exit Configuration: Dual. Exit Location: Behind Rear Tire Exit. Muffler Chamber Diameter: 8". Muffler Chamber Height: 8". Muffler Chamber Length:...
      Increase of 10-15 horsepower and pound feet of torqueDeep, Commanding Exhaust Tone
      $466.35 - $721.02
    • (0 reviews)
      # 137187402
      GMC Sierra 2003, Extreme Dual™ Exhaust System by Gibson®. Exhaust Type: Cat-Back. Exit Configuration: Dual. Exit Location: Behind Each Rear Tire Exit. Muffler Chamber Diameter: 8". Muffler Chamber Height: 8". Muffler Chamber...
      Dyno tuned for each applicationLess restriction for increased exhaust flow
      $466.35 - $721.02
    • (0 reviews)
      # 137187413
      GMC Sierra 2003, Split Rear™ Exhaust System by Gibson®. Exhaust Type: Cat-Back. Exit Configuration: Dual. Exit Location: Straight Out The Back Exit. Muffler Chamber Diameter: 8". Muffler Chamber Height: 8". Muffler Chamber...
      Increase of 10-15 horsepower and pound feet of torqueAggressive, throaty exhaust tone
      $466.35 - $721.02
    • (1 review)
      # 137187424
      GMC Sierra 1500 2003, Super Truck™ Exhaust System by Gibson®. Exhaust Type: Cat-Back. Exit Configuration: Single. Exit Location: In Front of Rear Tire Exit. Muffler Chamber Diameter: 7". Muffler Chamber Height: 7". Muffler...
      Increase of 15-20 HorsepowerLoud Performance Exhaust Tone; may exceed 95 decibels
      $387.54 - $432.62
    • (0 reviews)
      # 114408943
      GMC Sierra 2003, Swept Side™ Exhaust System by Gibson®. Exit Configuration: Single. Exit Location: Behind Rear Tire Exit. Muffler Chamber Diameter: 8". Muffler Chamber Height: 8". Muffler Chamber Length: 24". Muffler Chamber...
      Less restriction for increased exhaust flowIncrease of 10-15 horsepower and pound feet of torque
      $387.54 - $763.90
    • (0 reviews)
      # 1520658
      GMC Sierra 2003, Sport Stainless Steel Cat-Back Exhaust System with Tips by Corsa®. Muffler Sound: AGGRESSIVE. Muffler Body Material: 304 SS. Muffler Body Finish: Brushed Satin. Muffler Body Shape: Oval. Muffler Type: Inner Core...
      Robust and Bold Performance SoundNo Drone at Touring Speeds
      $798.62 - $999.85
    • (0 reviews)
      # 36201032
      GMC Sierra 4.8L / 5.3L Short Bed Extended Cab 2003, Black Series™ Cat-Back Exhaust System by MBRP®. Series: Black Series™. Exhaust Pipe Material: Aluminized Steel. Exhaust Type: Cat-Back. Main Piping Diameter: 3". Muffler...
      16 GA aluminized steel constructionMellow, authoritative exhaust note
      $514.99
    • (0 reviews)
      # 75116875
      GMC Sierra 3500 Duramax Engine Extended Cab / Crew Cab 2003, Black Series™ Downpipe-Back Diesel Exhaust System by MBRP®. Series: Black Series™. Exhaust Type: Downpipe-Back. Exit Location: Single Side Exit. Black is the new...
      Mellow, authoritative exhaust note16 GA aluminized steel construction
      $644.99 - $819.99
    • (0 reviews)
      # 3695494
      GMC Sierra 3500 Duramax Engine Extended Cab / Crew Cab 2003, Installer Series™ Cat-Back Diesel Exhaust System by MBRP®. Series: Installer Series™. Exhaust Pipe Material: Aluminized Steel. Exhaust Type: Cat-Back. Main Piping...
      Mandrel-bent constant-diameter tubingMellow, authoritative exhaust note
      $389.99 - $674.99
    • (0 reviews)
      # 47338778
      GMC Sierra 2003, Installer Series™ Cat-Back Exhaust System by MBRP®. Series: Installer Series™. Exhaust Pipe Material: Aluminized Steel. Exhaust Type: Cat-Back. The Installer Series from MBRP brings you the best in high-quality...
      Boosts horsepower and torqueMellow, authoritative exhaust note
      $409.99 - $529.99
    • (0 reviews)
      # 3695849
      GMC Sierra 3500 Duramax Engine Extended Cab / Crew Cab 2003, Installer Series™ Downpipe-Back Diesel Exhaust System by MBRP®. Series: Installer Series™. Exhaust Pipe Material: Aluminized Steel. Exhaust Type: Downpipe-Back. Built...
      Mandrel-bent constant-diameter tubingMellow, authoritative exhaust note
      $419.99 - $699.99
    • (1 review)
      # 3695667
      GMC Sierra 3500 Duramax Engine Extended Cab / Crew Cab 2003, PLM Series™ Off-Road Downpipe-Back Diesel Exhaust System by MBRP®. Series: PLM Series™. Exhaust Type: Downpipe-Back. Exit Location: Single Side Exit. Sometimes you...
      Racing onlySingle pipe and single exit
      $279.99 - $444.99
    • (1 review)
      # 53252803
      GMC Sierra 3500 Duramax Engine 2003, Performance Series™ Diesel Exhaust System by MBRP®. Series: Performance Series™. Main Piping Diameter: 4". Exit Location: Single Side Exit. Get more out of your turbodiesel pickup with a...
      Authoritative exhaust noteSingle side exit behind passenger-side rear tire
      $324.99
    • (0 reviews)
      # 3695912
      GMC Sierra 3500 Duramax Engine Extended Cab / Crew Cab 2003, Pro Series™ 304 SS Cat-Back Diesel Exhaust System by MBRP®. Series: Pro Series™. Exhaust Pipe Material: Stainless Steel. Exhaust Type: Cat-Back. Main Piping Diameter:...
      Mellow, authoritative exhaust noteMirror-polished T304 stainless tips and mufflers
      $789.99
    • (0 reviews)
      # 78729204
      GMC Sierra 2500 HD 6.0L Short Bed Crew Cab 2003, Pro Series™ 304 SS Cat-Back Exhaust System by MBRP®. Series: Pro Series™. Exhaust Pipe Material: Stainless Steel. Exhaust Type: Cat-Back. Main Piping Diameter: 2.5". Exit...
      Mellow, authoritative exhaust noteT304 stainless steel pipe
      $824.99
    • (0 reviews)
      # 47335083
      GMC Sierra 3500 Duramax Engine Extended Cab / Crew Cab 2003, Pro Series™ Off-Road 304 SS Downpipe-Back Diesel Exhaust System by MBRP®. Series: Pro Series™. Exhaust Pipe Material: Stainless Steel. Exhaust Type: Downpipe-Back....
      Mellow, authoritative exhaust noteMirror-polished T304 stainless tips and mufflers
      $854.99
    • (0 reviews)
      # 3695797
      GMC Sierra 3500 Duramax Engine Extended Cab / Crew Cab 2003, SLM Series™ Off-Road 409 SS Downpipe-Back Diesel Exhaust System by MBRP®. Series: SLM Series™. Exhaust Pipe Material: 409 SS. Exhaust Type: Downpipe-Back. Muffler...
      Deletes stock catalytic converter and muffler16 GA T409 stainless steel construction
      $494.99 - $574.99
    • (0 reviews)
      # 78729206
      GMC Sierra 2500 / 3500 2003, TD Series™ 409 SS Downpipe-Back Diesel Exhaust System by MBRP®. Series: TD Series™. Exhaust Pipe Material: Stainless Steel. Exhaust Type: Downpipe-Back. Main Piping Diameter: 5". Exit Location:...
      Deletes catalytic converterCompetition only
      $674.99
    • (0 reviews)
      # 3695058
      GMC Sierra Duramax Engine Extended Cab / Crew Cab 2003, XP Series™ 409 SS Cat-Back Diesel Exhaust System by MBRP®. Series: XP Series™. Exhaust Pipe Material: Stainless Steel. Exhaust Type: Cat-Back. Main Piping Diameter: 4"....
      Competition onlyMade of T409 Stainless Steel
      $514.99
    • (0 reviews)
      # 3695713
      GMC Sierra 2003, XP Series™ 409 SS Cat-Back Exhaust System by MBRP®. Series: XP Series™. Exhaust Pipe Material: 409 SS. Exhaust Type: Cat-Back. The XP series exhausts from MBRP is for the no-compromise enthusiast who insists on...
      Mellow, authoritative exhaust noteConstructed entirely of T409 stainless steel
      $464.99 - $709.99
    • (0 reviews)
      # 3695194
      GMC Sierra 3500 Duramax Engine Extended Cab / Crew Cab 2003, XP Series™ Off-Road 409 SS Downpipe-Back Diesel Exhaust System by MBRP®. Series: XP Series™. Exhaust Pipe Material: 409 SS. Exhaust Type: Downpipe-Back. Muffler...
      Competition onlyMade of T409 Stainless Steel
      $599.99 - $944.99
    • (0 reviews)
      # 45909146
      GMC Sierra 2003, 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
      $452.17 - $903.71
    • (0 reviews)
      # 901927
      GMC Sierra 2003, Sport Polished Stainless Steel Cat-Back Exhaust System by dB®. System Type: Cat-Back. Exhaust Pipe Material: Stainless Steel. Exit Quantity: Single. Main Piping Diameter: 3". Slash-Cut Polished Tip. Tip Outlet...
      Engineered Specifically for Each ApplicationSound Tuned to Character of Vehicle
      $654.58 - $829.12
    • (0 reviews)
      # 1465557
      GMC Sierra 1500 HD / 2500 HD Crew Cab 6.0L Short Bed 2003, Cat-Back Exhaust System with Tip by CGS®. Muffler Sound: MILD TONE. Tip Finish: Polished. Tip Material: Stainless Steel. Tip Inlet Diameter: 3.5". Main Piping Diameter: 3"....
      Dyno proven gains in horsepower and torqueImproved performance
      $450.00 - $547.50
    • (0 reviews)
      # 110528911
      GMC Sierra 6.6L 2003, Eliminator Series Cat-Back Black High Temp Heat Treated Coating Diesel Exhaust System by RBP®. Tubing Diameter: 4". Exit Style: Single Passenger Side Rear Exit; Material: Stainless Steel with Black High Temp...
      Made in Stainless Steel for DurabilityLowers Exhaust Gas Temperature
      $1,000.00
    • (0 reviews)
      # 110528918
      GMC Sierra 2003, Eliminator Series Turbo-Back Black High Temp Heat Treated Coating Diesel Exhaust System by RBP®. Exit Style: Single Passenger Side Rear Exit; Material: Stainless Steel with Black High Temp Heat Treated Coating;...
      Made in Stainless Steel for DurabilityLowers Exhaust Gas Temperature
      $1,000.00 - $1,200.00
    • (0 reviews)
      # 39438920
      GMC Sierra 6.6L 2003, Atlas™ Downpipe-Back Exhaust System by aFe®. Exhaust Type: Downpipe-Back. 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...
      The least restriction for maximum airflowIncreases horsepower and torque
      $345.00 - $845.00
    • (0 reviews)
      # 39438923
      GMC Sierra 6.6L 2003, Large Bore HD™ Exhaust System by aFe®. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Large Bore HD Exhaust System. aFe dyno...
      Up to 29% greater exhaust flow than stock systemIncreases horsepower and torque
      $445.00 - $819.00
    • (0 reviews)
      # 61356611
      GMC Sierra 2003, 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...
      Up to 29% Greater Exhaust Flow than stock systemIncreases horsepower and torque
      $495.00 - $1,045.00
    • (0 reviews)
      # 18220558
      GMC Sierra 2003, Super Turbo™ Aluminized Steel Cat-Back Exhaust System by DynoMax®. Exhaust Material: Aluminized Steel. Exhaust Type: Cat-Back. Muffler Series: Super Turbo. Get improved exhaust flow and reduced back pressure for...
      Constructed to increase horsepower and torque thanks to improved exhaust flowStainless steel Super Turbo muffler will maintain a mellow performance tone
      $301.54 - $332.30
    • (0 reviews)
      # 83212626
      GMC Sierra 2003, Ultra Flo™ Stainless Steel Exhaust System by DynoMax®. Exhaust Material: Stainless Steel. Clamp Type: Band. Muffler Count: 1. Muffler Series: Ultra Flo Welded. Tip Material: Polished Stainless Steel. This Exhaust...
      Unrestricted, straight-through design for a dyno-proven increase in horsepower and torqueUltra Flo Welded muffler will give your car a deep performance tone
      $317.04 - $408.71
    • (0 reviews)
      # 68924797
      GMC Sierra 2500 / 3500 2003, 409 SS Downpipe-Back Exhaust System without Muffler by Pypes®. Exhaust Pipe Material: 409 SS. Exhaust Type: Downpipe-Back. Exit Location: Single Side Exit. Main Piping Diameter: 4". Without Muffler. Get...
      Designed to deliver the ultimate in sound and performanceProvides extra punch in the passing lane and improves mileage
      $362.87
    • (0 reviews)
      # 68924796
      GMC Sierra 2500 / 3500 2003, 409 SS Turbo-Back Exhaust System by Pypes®. Exhaust Pipe Material: 409 SS. Exhaust Type: Turbo-Back. Exit Location: Single Side Exit. Main Piping Diameter: 4". Want that rumble when you start up your...
      High Quality 409 SS ConstructionBetter Fuel Economy
      $397.72
    • (0 reviews)
      # 100778145
      GMC Sierra Regular Cab / Extended Cab / Crew Cab 6.6L 2003, Exhaust System 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...
      The finest quality at a great priceOE quality parts from top original equipment and aftermarket manufacturers
      $225.63 - $499.73
    • (0 reviews)
      # 80697812
      GMC Sierra 6.6L 2003, Silverline™ Cat-Back Exhaust System by Ansa®. Exhaust Type: Cat-Back. Offering one of the broadest selections of exhaust upgrades for the Light Diesel Truck market, Silverline™ Systems are available in...
      Provides maximum torque and powerReduces Back Pressure
      $429.66 - $1,267.56
    • (0 reviews)
      # 80697796
      GMC Sierra 6.6L 2003, Silverline™ Downpipe Back Exhaust System by Ansa®. Exhaust Type: Downpipe-Back. Offering one of the broadest selections of exhaust upgrades for the Light Diesel Truck market, Silverline™ Systems are...
      Dyno-proven Horsepower and Torque GainsReduces Back Pressure
      $246.14 - $763.88
    • (0 reviews)
      # 88801269
      GMC Sierra 2003, Cat-Back Exhaust System by Flo-Pro®. Tubing Diameter: 4". System Type: Cat-Back. Designed with meticulous attention to the smallest detail this premium product will meet your needs and expectations. This FLO~PRO...
      Made from premium materialsGuarantees exceptional durability
      $266.83 - $434.82
    • (0 reviews)
      # 88801283
      GMC Sierra 2003, Downpipe Back Exhaust System by Flo-Pro®. Designed with meticulous attention to the smallest detail this premium product will meet your needs and expectations. This FLO~PRO product is manufactured from top-grade...
      Made from premium materialsGuarantees exceptional durability
      $271.76 - $553.42
    • (0 reviews)
      # 88801280
      GMC Sierra 6.6L 2003, Turbo Back Race Exhaust System by Flo-Pro®. Material: 409 Stainless Steel. Exit Quantity: Single. Turbo Back Tubing: 4". Muffler Back Tubing: 4". Designed with meticulous attention to the smallest detail this...
      Made from premium materialsGuarantees exceptional durability
      $345.89 - $363.67
    • (1 review)
      # 143321938
      GMC Sierra Duramax Engine 2003, 4" Assault Series Stainless Steel Downpipe Exhaust System by Sinister Diesel®. Sinister Diesel exhaust systems deliver tuned performance and are designed to maximize your diesel trucks horsepower...
      Maximize your trucks horsepower and torque409 Stainless steel
      $465.00
    • (0 reviews)
      # 1281814
      GMC Sierra 2003, Scavenger Series 4-1 One-Piece Style Ceramic Coated Short Tube Elite Headers by Flowmaster®. Sema Emissions Code: 1. High Temperature Ceramic Coating. Attachment Method: Stock Flange. 2 per Pack. Inlet Port Shape:...
      Increases horsepower and torqueImproves engine efficiency and throttle response
      $599.00
    • (1 review)
      # 3730106
      GMC Sierra 2003, 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 restrictive factory exhaust manifolds. The...
      Increases low and mid-range horsepower and torqueIncreases engine efficiency
      $476.49 - $656.89
    • (0 reviews)
      # 3145695
      GMC Sierra W/O Air Injection 2003, TorqueTube™ Exhaust Manifold System by Banks®. Cast OEM exhaust manifolds just are too restrictive. Replacing them with Banks Torque Tubes will substantially reduce the backpressure where it...
      Shorty style fits in stock engine bayStainless steel for long service life
      $586.07
    • (1 review)
      # 118688481
      GMC Sierra 2003, Tuned Length Shorty Headers by BBK®. Primary Tubing Diameter: 1.75". Gain 15-20 dyno-proven horsepower at the rear wheels just by bolting on a set of BBK long tube, full length headers. These premium headers are...
      Dyno testing results show a typical increase of 15-20 horsepower at the rear wheelsDeveloped using CAD (Computer Aided Design) software
      $349.99 - $469.99
    • (0 reviews)
      # 82924243
      GMC Sierra 2500 HD 8.1L 2003, Stainless Steel Headers by Stainless Works®. Collector Diameter: 3". Connection Point: Factory Connect. This superior product is made from high-grade stainless steel to ensure excellent quality and...
      Designed to meet strict quality standardsCarefully crafted from first-rate stainless steel
      $927.00
    • (0 reviews)
      # 142866666
      GMC Sierra V8 2003, Mild Steel Long Tube Headers by Flowtech®. Header Material: Mild Steel. FLOWTECH headers are precision engineered and leak tested to get maximum performance and fuel economy from your engine. Each header is...
      Mandrel-formed Power Plenum collectors for low backpressureConstructed of .060 cold roll flash mild steel tubing
      $405.95 - $507.95
    • (0 reviews)
      # 100092580
      GMC Sierra Gas 4.8L / 5.3L without Exhaust Gas Recirculation 2003, Mild Steel Shorty Headers by Flowtech®. CARB Compliant: Yes. System Type: Short Tube. Header Material: Mild Steel. Flowtech’s emissions-friendly headers are just...
      This is a 50-State Legal headerSturdy 16 gauge tubing
      $291.95 - $448.95
    • (0 reviews)
      # 139171545
      GMC Sierra RWD (Rear Wheel Drive) 2003, Super Competition™ Long Tube Header by Hooker®. Series: Super Competition™. System Type: Long Tube Header. Collector Outlet Diameter: 3". CARB Compliant: No. Port Shape: Same As Port. All...
      Expertly crafted from premium materialsDesigned to match rigorous quality standards
      $496.95 - $776.95
    • (0 reviews)
      # 61593876
      GMC Sierra 1500 / 1500 HD 2003, SuperMAXX Stainless Steel Long Tube Headers by Dynatech®. 1 Pair. Header Style: Full-length. Header Material: Stainless steel. Header Finish: Natural. Primary Tube Diameter: 1 3/4". Collector...
      Perfect, direct bolt-on fit+15 HP and 38.5 Ft. Lbs of Torque
      $899.99




    Guides & Articles

    • Performance Exhaust Systems
      Here's A "Tip": Exhaust Tips Are An Easy Way To Dress Up Your Tailpipe
      Performance exhaust systems give you improvements in power output, sound levels, and appearance, all in one package. But let's face it: not everyone has the spare change to buy and bolt up one of these kits. So you soldier on with what you have. And that may be a tired-looking exhaust system that is still functional. You've spent all day washing and waxing the vehicle's paint and chrome to perfection, but no degree of elbow grease will make that tailpipe look better.
    • Performance Exhaust Systems
      Are Headers Worth The Performance Improvement?
      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 Exhaust Systems
      Are X-pipes and H-pipes Better Than Straight Pipes on Dual Exhaust Systems?
      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 Exhaust Systems
      Power, Sound, Looks | Can I Have It All With a Cat-Back Exhaust System?
      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?
    • Bed Accessories
      Pickup Truck Cab And Bed Sizes Are Important When Selecting Accessories
      Americans love to have choices. Buying a dress shirt? Decide solid or stripe, short or long sleeve, cotton or poly blend, button or spread collar, regular fit, slim fit, or big & tall. How about a meal at your favorite steak house? Will it be porterhouse, T-bone, or sirloin? Cooked rare, medium-rare, or medium? With baked, mashed, or French fried potatoes? Thirsty for a fancy cup of coffee? Let's not even get started on options that let you end up with a "grande caramel macchiato with 1% low-fat milk, 2 Splendas, and an extra espresso shot".
    • Replacement Exhaust Parts
      Direct Fit vs. Universal Mufflers
      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

    2003 GMC Sierra Performance Exhaust Systems Reviews

    Average rating:  5  5 - 1 review
    5 of 5
    The Service
    I've been working a lot lately, so the box is still sitting in the garage. Hope, I'll have some time this weekend. The service was great. The transaction and delivery went really smooth and the system was shipped as promised. I'm definitely going to be a return customer.
    MPosted by Miguel (Woodbridge, ON) /
    2003 GMC Sierra
    Was this review helpful for you? Yes2  people found this review helpful.
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