2003 GMC Sierra 2500 Exhaust Systems
Select Your Submodel
-
Dorman®Exhaust Manifold Hardware KitGMC Sierra 2500 2003, Exhaust Manifold Hardware Kit by Dorman®. Dorman manifold bolt and spring kits are just what you need to secure the front flange. Dorman offers products like fasteners and solutions to keep your vehicle running its...Direct replacement for a proper fitBuilt to Last$9.44 - $46.86 - BBK®Tuned Length Steel Short Tube Exhaust HeadersGMC Sierra 2500 / Sierra 2500 HD 6.0L 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...Developed using CAD (Computer Aided Design) softwareCNC mandrel bent tubes to ensure consistent diameter throughout the tubes$499.99 - $549.99
- MagnaFlow®Heavy Metal Direct Fit Catalytic ConverterGMC Sierra 2500 HD 133.0" Wheelbase 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Direct Fit. With Gasket. Without Air Tube. Catalytic Inlet Diameter: 3". Catalytic Outlet Diameter: 3". If your car needs...$517.00 - $1,176.00
- MagnaFlow®OBDII Direct Fit Catalytic ConverterGMC Sierra 2500 HD 6.0L 2003, OBDII 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 will directly replace the...$1,035.00 - $1,537.00
- MagnaFlow®Diesel Universal Fit Round Body Catalytic ConverterGMC Sierra 2500 HD 6.6L 2003, Diesel Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Converter Overall Length: 12". If...$506.00
- MagnaFlow®Heavy Metal Universal Fit Round Body Catalytic ConverterGMC Sierra 2500 HD 133.0" Wheelbase 2003, Heavy Metal Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Round. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter:...$178.00
- MagnaFlow®OBDII Universal Fit Oval Body Catalytic ConverterGMC Sierra 2500 with LEV Standard / with LEV1 Standard 2003, OBDII Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Catalytic...$390.00 - $523.00
- MagnaFlow®OEM Grade Universal Fit Catalytic ConverterGMC Sierra 2500 HD 2003, OEM Grade Catalytic Converter by MagnaFlow®. Converter Configuration: Universal Fit. Without Air Tube. Without O2 Sensor Port. Catalytic Inlet Diameter: 3". Catalytic Outlet Diameter: 3". If your car needs a new...$194.00 - $231.00
- MagnaFlow®OEM Grade Direct Fit Catalytic ConverterGMC Sierra 2500 HD 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
- aFe®Mach Force XP™ 409 SS Cat-Back Exhaust System with Single Side ExitGMC Sierra 2500 HD 6.6L 2003, Mach Force XP™ 409 SS Cat-Back Exhaust System with Single Side Exit by aFe®. With Muffler Delete Pipe. Exhaust System Type: Cat-Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 4". Exhaust...$785.00
- iD Select®Standard Universal Fit Large Oval Body Catalytic ConverterGMC Sierra 2500 HD with Federal Emission 2003, Standard Catalytic Converter by iD Select®. Converter Configuration: Universal Fit. Location: Undercar. Catalytic Converter Body Shape: Large Oval. Without Air Tube. Without O2 Sensor Port....$193.39
- Gibson®Dual Sport™ Stainless Steel Cat-Back Exhaust System with Dual Side ExitGMC Sierra 2500 HD 6.0L / 8.1L without 5th Wheel Trailer Hitch 2003, Dual Sport™ Stainless Steel Cat-Back Exhaust System with Dual Side Exit by Gibson®. Exhaust System Type: Cat-Back. Exhaust Tubing Material: Stainless Steel. Main...$862.43$958.26Save 10%
- AP Exhaust®Universal Fit Catalytic ConverterGMC Sierra 2500 2003, Catalytic Converter by AP Exhaust®. Converter Configuration: Universal Fit. Today’s exhaust performance market continues to cover a broad spectrum of vehicles. The unique nature of this market is that a product...$206.52 - $699.54
- TRQ®Exhaust Manifold KitGMC Sierra 2500 HD 2003, Exhaust Manifold Kit by TRQ®. Designed to fit and function exactly as the part it is replacing, this top-grade TRQ exhaust manifold kit will keep your vehicle in its best condition. Made using superior...Intended to bring your vehicle back to its original gloryBudget-friendly alternative to the OEM part$97.80 - $161.45$102.95 - $169.95Save 5%
- JBA®Cat4ward Stainless Steel Shorty Exhaust HeadersGMC Sierra 2500 2003, Cat4ward Stainless Steel Shorty Exhaust Headers by JBA®. Collector Outlet Diameter: 2.5". Header Material: Stainless Steel. Header Style: Short Tube. JBA shorty headers are one of the best performance upgrades...Mandrel-bent stainless steel primary tubesPatented JBA Firecone® collector$599.95 - $799.95
- SKP®Exhaust ManifoldGMC Sierra 2500 2003, Exhaust Manifold by SKP®. Put your vehicle back to its original condition with this top-notch transfer case component designed to efficiently transmit the engine power to both the front and rear axles through...Designed to send the engine power to both the front and rear axlesDirect-fit replacement for your overworked, out-of-shape transfer case$67.87 - $154.32
- CGS®Cat-Back Exhaust System with Single Side ExitGMC Sierra 2500 HD Crew Cab 6.0L with Short Bed 2003, Cat-Back Exhaust System with Single Side Exit by CGS®. Exhaust System Type: Cat-Back. Main Tubing Diameter: 3". Exhaust System Sound: Mild / Stock. Get more power, improved...$495.99 - $669.99
- CATCO®Pre-OBDII Universal Fit Oval Body Catalytic ConverterGMC Sierra 2500 / Sierra 2500 HD 6.0L 2003, Pre-OBDII Catalytic Converter by CATCO®. Converter Configuration: Universal Fit. Catalytic Converter Body Shape: Oval. Without Air Tube. Without O2 Sensor Port. Designed and manufactured with...$251.79 - $434.53
- Gibson®Performance Stainless Steel Short Tube Exhaust HeadersGMC Sierra 2500 2003, Performance Stainless Steel Short Tube Exhaust Headers by Gibson®. Header Style: Short Tube. Let your engine breathe and gain power and performance with Gibson Performance Headers. These headers will flow much more...Increases low and mid-range horsepower and torqueIncreases engine efficiency$738.88 - $883.73$793.84 - $949.46Save up to 10%
- Davico®Exhaust ManifoldGMC Sierra 2500 2003, Exhaust Manifold by Davico®. This product by Davico will be a great solution to replace your failed or damaged exhaust manifold. Once your stock cat fails to perform its job, replacement is the only solution. Make...Helps your vehicle emit harmless gasesDirect OEM replacement$76.89 - $92.75
- Davico®Exhaust Manifold with Integrated Catalytic ConverterGMC Sierra 2500 HD 153.0" Wheelbase 6.6L 2003, Exhaust Manifold with Integrated Catalytic Converter by Davico®. This product by Davico will be a great solution to replace your failed or damaged catalytic converter. Once your stock cat...Helps your vehicle emit harmless gasesDirect OEM replacement$447.35
- Eastern Catalytic®ECO II Direct Fit Catalytic ConverterGMC Sierra 2500 HD 143.5" Wheelbase 6.0L / 8.1L with Federal Emission 2003, ECO II Catalytic Converter by Eastern Catalytic®. Converter Configuration: Direct Fit. Position: Passenger Side. Location: Undercar. With 1 O2 Sensor Port....$494.43
- ACDelco®Genuine GM Parts™ Exhaust ManifoldGMC Sierra 2500 2003, Genuine GM Parts™ Exhaust Manifold by ACDelco®. Designed utilizing the latest technology, this product by ACDelco features premium quality and will perform better than advertised. Perfect for your vehicle and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$142.06 - $239.32
- Flowmaster®Super 40 Series Delta Flow™ Oval Diesel Black Exhaust MufflerGMC Sierra 2500 HD 6.6L 2003, Super 40 Series Delta Flow™ Oval Diesel Black Exhaust Muffler by Flowmaster®. Without Hangers. Muffler Inlet Diameter: 3". Muffler Outlet Diameter: 3". Muffler Body Length: 13.5". Muffler Overall Length:...$133.95 - $153.95
- DIY Solutions®Exhaust Muffler HangerGMC Sierra 2500 / Sierra 2500 HD 2003, Exhaust Muffler Hanger by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you should definitely look...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$41.77 - $135.61
- DIY Solutions®Exhaust Muffler HangerGMC Sierra 2500 / Sierra 2500 HD With 2 Hole Design 2003, Exhaust Muffler Hanger by DIY Solutions®. If you're seeking to get your steel stallion back to its tip-top condition, then this top-notch replacement solution is what you...Designed to help restore your vehicle to its former gloryQuick replacement to let you enjoy an awesome ride again$41.77 - $135.61
- Eastern Catalytic®ECO II Direct Fit Catalytic Converter and Pipe AssemblyGMC Sierra 2500 HD with Federal Emission 2003, ECO II Catalytic Converter and Pipe Assembly by Eastern Catalytic®. Converter Configuration: Direct Fit. Location: Undercar. With 2 O2 Sensor Ports. Catalytic Outlet Diameter: 3". If you...$618.05 - $656.09
- Stainless Works®Stainless Steel Long Tube Exhaust Headers with Factory ConnectGMC Sierra 2500 2003, Stainless Steel Long Tube Exhaust Headers with Factory Connect by Stainless Works®. Collector Outlet Diameter: 3". Color: Silver. Header Coating: Uncoated. Header Style: Long Tube. This superior product is made...Designed to meet strict quality standards0.375" Laser Cut Flanges$1,590.30
- Flowmaster®50 Series Big Block™ Aluminized Steel Oval Black Exhaust MufflerGMC Sierra 2500 2003, 50 Series Big Block™ Aluminized Steel Oval Black Exhaust Muffler by Flowmaster®. Without Hangers. Muffler Inlet Diameter: 3". Muffler Outlet Diameter: 3.5". Muffler Body Length: 22". Muffler Overall Length: 28"....$276.95
- Flowmaster®50 Series HD Delta Flow™ Oval Black Exhaust MufflerGMC Sierra 2500 2003, 50 Series HD Delta Flow™ Oval Black Exhaust Muffler by Flowmaster®. Muffler Inlet Diameter: 3.5". Muffler Outlet Diameter: 3.5". Muffler Body Length: 18". Muffler Sound: Moderate. Muffler Structure: Chambered....$245.95 - $276.95
Shop By Service Type
2003 GMC Sierra 2500 Exhaust Reviews
5 reviews
I Would Definitely Buy Again
SLP® - Loud Mouth™ Stainless Steel Round Bullet-Type Silver Exhaust Resonator (2.5" Center ID, 2.5" Center OD, 14" Length)Posted by Robert (Monroe, WI) / November 20, 20222000 Dodge Dakota