2003 GMC Sierra Exhaust Systems

GMC Sierra Exhaust - 2003
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4.8L
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  • Borla® - Touring™ Stainless Steel Cat-Back Exhaust System with Single Side Exit
    Borla®Touring™ Stainless Steel Cat-Back Exhaust System with Single Side Exit
    11
    # 1170948361
    GMC Sierra 1500 Base / SL / SLE / SLT / WT 78.0" Bed Extended Cab 2003, Touring™ Stainless Steel Cat-Back Exhaust System with Single Side Exit by Borla®. The product is un-polished. Tip style may vary. Exhaust System Type: Cat-Back....
    $913.99
  • Gibson® - Super Truck™ Cat-Back Exhaust System with Dual Side Exit
    Gibson®Super Truck™ Cat-Back Exhaust System with Dual Side Exit
    4
    # 1170967440
    GMC Sierra 1500 with Stock Single Inlet Muffler 2003, Super Truck™ Cat-Back Exhaust System with Dual Side Exit by Gibson®. Exhaust System Type: Cat-Back. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud. When quiet...
    $540.30 - $574.98
  • MBRP® - Installer Series™ Aluminized Steel Cat-Back Exhaust System with Split Rear Exit
    Save 7%
    MBRP®Installer Series™ Aluminized Steel Cat-Back Exhaust System with Split Rear Exit
    30
    # 3364709039
    GMC Sierra Extended Cab 4.8L / 5.3L with Short Bed 2003, Installer Series™ Aluminized Steel Cat-Back Exhaust System with Split Rear Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing...
    $511.49
    $549.99Save 7%
  • Corsa® - Sport™ 304 SS Cat-Back Exhaust System with Dual Side Exit
    Corsa®Sport™ 304 SS Cat-Back Exhaust System with Dual Side Exit
    14
    # 5883892326
    GMC Sierra Regular Cab 4.8L / 5.3L 2003, Sport™ 304 SS Cat-Back Exhaust System with Dual Side Exit by Corsa®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 304 SS. Main Tubing Diameter: 3". Exhaust System Sound: Aggressive /...
    $1,267.99 - $1,313.99
  • aFe® - Mach Force XP™ 409 SS Cat-Back Exhaust System with Single Side Exit
    aFe®Mach Force XP™ 409 SS Cat-Back Exhaust System with Single Side Exit
    13
    # 1119817203
    GMC Sierra 2003, Mach Force XP™ 409 SS Cat-Back Exhaust System with Single Side Exit by aFe®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Exhaust System Sound: Aggressive / Loud. Get increased exhaust flow, more...
    $785.00 - $865.00
  • Walker® - SoundFX™ Steel Oval Direct-Fit Aluminized Exhaust Muffler
    Walker®SoundFX™ Steel Oval Direct-Fit Aluminized Exhaust Muffler
    9
    # 85231873
    GMC Sierra 2003, SoundFX™ Steel Oval Direct-Fit Aluminized Exhaust Muffler by Walker®. Optional. Muffler Inlet Diameter: 2.75". Muffler Outlet Diameter: 2.75". Muffler Body Length: 24". Muffler Overall Length: 29". Muffler...
    Designed to deliver ultimate performance and pleasing sound qualityOE-equivalent direct-fit design
    $43.71 - $54.48
  • TRQ® - Exhaust Manifold
    Save up to 7%
    TRQ®Exhaust Manifold
    0
    # 5280781095
    GMC Sierra 2003, Exhaust Manifold by TRQ®. Made with quality in mind, this high-grade TRQ exhaust manifold fits right away without any trouble. It is built using the latest technology and innovation to meet your demands and help you...
    Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part
    $85.49 - $101.47
    $90.95 - $107.95Save up to 7%
  • MagnaFlow® - Diesel Direct Fit Catalytic Converter
    MagnaFlow®Diesel Direct Fit Catalytic Converter
    9
    # 3804190408
    GMC Sierra 6.6L 2003, Diesel Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. Without Air Tube. Catalytic Converter Overall Length: 45.75". If your car needs replacement, install one that will get you through the...
    $771.00
  • Flowmaster® - American Thunder™ Aluminized Steel Cat-Back Exhaust System with Dual Side Exit
    Flowmaster®American Thunder™ Aluminized Steel Cat-Back Exhaust System with Dual Side Exit
    26
    # 1119830418
    GMC Sierra 78.0" Bed 2003, American Thunder™ Aluminized Steel Cat-Back Exhaust System with Dual Side Exit by Flowmaster®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing Diameter: 2.5". Exhaust...
    $498.95 - $621.95
  • Gibson® - Swept Side™ Cat-Back Exhaust System with Single Side Exit
    Gibson®Swept Side™ Cat-Back Exhaust System with Single Side Exit
    35
    # 1119834074
    GMC Sierra 2003, Swept Side™ Cat-Back Exhaust System with Single Side Exit by Gibson®. Exhaust System Type: Cat-Back. Exhaust System Sound: Aggressive / Loud. Get increased horsepower and torque in the rpm range where you need it...
    $540.30 - $891.57
  • MBRP® - XP Series™ 409 SS Cat-Back Exhaust System with Split Rear Exit
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    MBRP®XP Series™ 409 SS Cat-Back Exhaust System with Split Rear Exit
    19
    # 4316155173
    GMC Sierra Extended Cab 4.8L / 5.3L with Short Bed 2003, XP Series™ 409 SS Cat-Back Exhaust System with Split Rear Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 2.5". Exhaust...
    $576.59
    $619.99Save 7%
  • AP Exhaust® - Direct Fit Catalytic Converter and Pipe Assembly
    AP Exhaust®Direct Fit Catalytic Converter and Pipe Assembly
    7
    # 80140029
    GMC Sierra 2003, Catalytic Converter and Pipe Assembly by AP Exhaust®. Converter Configuration: Direct Fit. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a...
    $417.54 - $1,077.39
  • ATP® - Natural Exhaust Manifold
    ATP®Natural Exhaust Manifold
    2
    # 1200612828
    GMC Sierra 2003, Natural Exhaust Manifold by ATP®. Color: Natural. Header Coating: Uncoated. ATP Graywerks Exhaust Manifolds are a high quality OE replacement alternative. Each manifold is developed off of the original parts...
    Manufactured to OE design ensuring manifold will line up and flow like the original unitHigh grade metallurgy resists fatigue cracking and breakage
    $75.96 - $372.29
  • CATCO® - Direct Fit Catalytic Converter and Pipe Assembly
    CATCO®Direct Fit Catalytic Converter and Pipe Assembly
    1
    # 2997413746
    GMC Sierra 2003, Catalytic Converter and Pipe Assembly by CATCO®. Converter Configuration: Direct Fit. Designed and manufactured with innovative fabrication methods, high-tech materials, and advanced coating, this converter leapfrogs...
    $470.99 - $742.88
  • AP Exhaust® - MSL Maximum Aluminized Steel Oval Direct-Fit Exhaust Muffler
    AP Exhaust®MSL Maximum Aluminized Steel Oval Direct-Fit Exhaust Muffler
    5
    # 403754151
    GMC Sierra 2003, MSL Maximum Aluminized Steel Oval Direct-Fit Exhaust Muffler by AP Exhaust®. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product...
    Designed for a quiet ride100% aluminized components for longer life
    $41.32 - $106.80
  • Walker® - Quiet-Flow™ Exhaust Muffler
    Walker®Quiet-Flow™ Exhaust Muffler
    20
    # 18138802
    GMC Sierra 2003, Quiet-Flow™ Exhaust Muffler by Walker®. Together with delivering OE-style sound, the Quiet-Flow Muffler features steel construction that resists rust. This part is a perfect decision if you are looking for proper...
    Designed for OE equivalent sound and precision fitSpun-locked heads for a proper resistance to backfire
    $92.25 - $242.02
  • MBRP® - XP Series™ 409 SS Cat-Back Exhaust System with Single Side Exit
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    MBRP®XP Series™ 409 SS Cat-Back Exhaust System with Single Side Exit
    19
    # 2439206029
    GMC Sierra Extended Cab 4.8L / 5.3L with Short Bed 2003, XP Series™ 409 SS Cat-Back Exhaust System with Single Side Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 3". Exhaust...
    $502.19
    $539.99Save 7%
  • MBRP® - XP Series™ 409 SS Cat-Back Exhaust System with Split Side Exit
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    MBRP®XP Series™ 409 SS Cat-Back Exhaust System with Split Side Exit
    19
    # 1170914195
    GMC Sierra with Short Bed 2003, XP Series™ 409 SS Cat-Back Exhaust System with Split Side Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 2.5". Exhaust System Sound: Moderate. The...
    $590.54 - $609.14
    $634.99 - $654.99Save 7%
  • AP Exhaust® - Xlerator Performance Oval Gray Exhaust Muffler
    AP Exhaust®Xlerator Performance Oval Gray Exhaust Muffler
    2
    # 81676233
    GMC Sierra 2003, Xlerator Performance Oval Gray Exhaust Muffler by AP Exhaust®. Muffler Inlet Diameter: 3". Muffler Sound: Moderate. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature...
    $48.54 - $123.51
  • MBRP® - Installer Series™ Aluminized Steel Cat-Back Exhaust System with Single Side Exit
    Save 7%
    MBRP®Installer Series™ Aluminized Steel Cat-Back Exhaust System with Single Side Exit
    30
    # 1119819332
    GMC Sierra 2003, Installer Series™ Aluminized Steel Cat-Back Exhaust System with Single Side Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Aluminized Steel. Exhaust System Sound: Moderate. Made of 100% heavy...
    $367.34 - $488.24
    $394.99 - $524.99Save 7%
  • MBRP® - Installer Series™ Aluminized Steel Cat-Back Exhaust System with Split Side Exit
    Save 7%
    MBRP®Installer Series™ Aluminized Steel Cat-Back Exhaust System with Split Side Exit
    30
    # 1002114613
    GMC Sierra with Short Bed 2003, Installer Series™ Aluminized Steel Cat-Back Exhaust System with Split Side Exit by MBRP®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Aluminized Steel. Main Tubing Diameter: 2.5". Exhaust...
    $460.34 - $571.94
    $494.99 - $614.99Save 7%
  • Flowmaster® - Super 40 Series Delta Flow™ Oval Black Exhaust Muffler
    Flowmaster®Super 40 Series Delta Flow™ Oval Black Exhaust Muffler
    5
    # 4398093563
    GMC Sierra 2003, Super 40 Series Delta Flow™ Oval Black Exhaust Muffler by Flowmaster®. Muffler Body Length: 13.5". Muffler Overall Length: 19.5". Muffler Sound: Aggressive / Loud. Muffler Structure: Chambered. The 2-chamber design of...
    $133.95 - $184.95
  • Walker® - Ultra™ Direct Fit Catalytic Converter and Pipe Assembly
    Walker®Ultra™ Direct Fit Catalytic Converter and Pipe Assembly
    4
    # 87067061
    GMC Sierra 2003, Ultra™ Catalytic Converter and Pipe Assembly by Walker®. Converter Configuration: Direct Fit. With O2 Sensor Port. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an industry...
    $359.41 - $901.28
  • MagnaFlow® - OEM Grade Direct Fit Catalytic Converter
    MagnaFlow®OEM Grade Direct Fit Catalytic Converter
    4
    # 61588724
    GMC Sierra 2003, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. If your car needs replacement, install one that will get you through the smog check. This converter is part of the exhaust...
    $336.00 - $1,470.00
  • Torxe™ - Direct Fit Catalytic Converter
    Torxe™Direct Fit Catalytic Converter
    1
    # 3804047984
    GMC Sierra 1500 2003, Catalytic Converter by Torxe™. Converter Configuration: Direct Fit. Direct Fit Catalytic converter by Torxe. Replace your clogged, corroded, and malfunctioning catalytic converter for the best possible price with...
    $310.50
  • Flowmaster® - American Thunder™ Cat-Back Exhaust System with Split Rear/Side Exit
    Flowmaster®American Thunder™ Cat-Back Exhaust System with Split Rear/Side Exit
    27
    # 1002070417
    GMC Sierra 1500 78.0" Bed with Single Flanged Catalytic Converter 2003, American Thunder™ Cat-Back Exhaust System with Split Rear/Side Exit by Flowmaster®. Exhaust System Type: Cat-Back. Main Tubing Diameter: 2.5". American Thunder...
    $717.95 - $975.95
  • BBK® - Tuned Length Steel Short Tube Exhaust Headers
    BBK®Tuned Length Steel Short Tube Exhaust Headers
    5
    # 4346142402
    GMC Sierra 2003, Tuned Length Steel Short Tube Exhaust Headers by BBK®. Primary Tubing Diameter: 1.75". Header Style: Short Tube. Gain 12-15 dyno-proven horsepower at the rear wheels just by bolting on a set of BBK long tube, full...
    Developed using CAD (Computer Aided Design) softwareCNC mandrel bent tubes to ensure consistent diameter throughout the tubes
    $499.99 - $549.99
  • Gibson® - Extreme Dual™ Cat-Back Exhaust System with Split Side Exit
    Gibson®Extreme Dual™ Cat-Back Exhaust System with Split Side Exit
    28
    # 1002100335
    GMC Sierra 2003, Extreme Dual™ Cat-Back Exhaust System with Split Side Exit by Gibson®. Exhaust System Type: Cat-Back. Main Tubing Diameter: 2.5". Exhaust System Sound: Aggressive / Loud. When you're ready to take your truck to the...
    $650.18 - $958.26
  • Dorman® - Exhaust Manifold
    Dorman®Exhaust Manifold
    8
    # 1200167092
    GMC Sierra 2003, Exhaust Manifold by Dorman®. This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and...
    Ideal replacement - this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehiclesReliable construction - durable materials resist warping, cracking and leaking for long-lasting performance
    $77.67 - $473.31
  • Walker® - Replacement Exhaust Kit
    Walker®Replacement Exhaust Kit
    58
    # 115253412
    GMC Sierra 2003, Replacement Exhaust Kit by Walker®. If you are looking for the ultimate in quality and value, then this superior replacement exhaust kit by Walker is what you need. All its components are designed with precision...
    Mufflers and Resonators Designed for OE equivalent sound and precision fitOE-style louvered tube technology for a premium, factory-like sound
    $39.71 - $1,675.28




Popular Products



2003 GMC Sierra Exhaust Reviews

6 reviews
Was a bit hesitant on buying this but was well worth it, it delivered on time and fit perfectly it also gives my old truck a nasty growl. I definitely recommend this item.
Posted by Robert (Monroe, WI) / November 20, 20222000 Dodge Dakota
2003 GMC Sierra Models
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