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Looking for aftermarket parts to modify or upgrade your 2004 GMC Sierra 2500 HD with catback? At Tunersports.com we carry a huge selection of the top name brand performance catback parts and accessories.
 OUT OF STOCK 40-3030When it comes to performance exhaust systems, most people are looking for three things: Power. Sound. Quality. JBA Exhaust Systems deliver the best of all three. While there is high demand for performance and sound, the capacity for power in a JBA Exhaust System gives us the edge. Each system is tun... JBA 01-06 Chevrolet Silverado 2500/3500 HD 6.0/8.1L 409SS Pass Side Dual Exit Cat-Back Exhaust 2001-2006 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2006 GMC Sierra 2500 HD WT $859.26 |
 OUT OF STOCK 106-0661BRExhaust Direct-Fit Replacement Exhaust Kit 106-0661 takes the guesswork out of replacing your exhaust system while providing a reliable and high-quality alternative to the OEM exhaust. You will find all of the gaskets and clamps needed to get the job done in the carefully packaged box. 106-0661’... BRExhaust 01-06 Silverado Sierra 2500 HD 3500 HD Exhaust Kit 2001-2006 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2004-2006 GMC Sierra 2500 HD WT $707.00 |
 OUT OF STOCK 106-0778BRExhaust Direct-Fit Replacement Exhaust Kit 106-0778 takes the guesswork out of replacing your exhaust system while providing a reliable and high-quality alternative to the OEM exhaust. You will find all of the gaskets and clamps needed to get the job done in the carefully packaged box. 106-0778’... MagnaFlow BRE Exhaust Kit 03-07 Silverado 2500 HD 6L 2003-2005 GMC Sierra 2500 HD Base 2003-2006 GMC Sierra 2500 HD SLE / SLT 2004-2006 GMC Sierra 2500 HD WT $878.00 |
 IN STOCK - LOW 15398The MagnaFlow Performance Exhaust Diesel Turbo Downpipe 15398 is a 3in. diameter mandrel bent stainless steel pipe designed to connect near your turbocharger and is weight-optimized with superior flow characteristics and performance. Each performance pipe is produced using precision CNC robotic manu... MagnaFlow 01-05 Chevy/GMC Duramax Diesel V8 6.6L 4 inch System Exhaust Pipe 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2005 GMC Sierra 2500 HD WT $212.00 |
 IN STOCK - DROPSHIPS 15789The MagnaFlow Street Series Cat-Back Performance Exhaust System 15789 brings out the personality of your Truck with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 4in. main piping and 1 Straight-Through mufflers ending in a Single P... MagnaFlow Sys C/B 03 GM Silverado 2500Hd 6.0L 2003-2005 GMC Sierra 2500 HD Base 2003-2006 GMC Sierra 2500 HD SLE / SLT / WT $965.00 |
 IN STOCK - DROPSHIPS 15829The MagnaFlow Street Series Cat-Back Performance Exhaust System 15829 brings out the personality of your Truck with our signature resonant, powerful engine tone and dyno-proven performance. Thanks to its fast-flowing, mandrel bent 3in. main piping and 1 Straight-Through mufflers ending in a Dual Spl... MagnaFlow Sys C/B 03- GM 2500HD 6.0 Dual CCSB 2001-2006 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2006 GMC Sierra 2500 HD WT $1,049.00 |
 IN STOCK S5010409RELIABILITY BACKED FOR A LIFETIME - ARMOR PLUS Series exhaust systems are crafted from corrosion-resistant T409 Stainless Steel - a value-oriented material designed to protect from penetrating rust and will stand up to almost anything you can throw at it.T409 Stainless Steel tubing is easy to clean.... MBRP 2003-2007 Chev/GMC 2500 HD 6.0L EC-SB Cat Back Dual Split Side 2001-2006 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2004-2006 GMC Sierra 2500 HD WT $699.99 |
 IN STOCK S5012ALTHE BEST BANG FOR YOUR BUCK - ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great cho... MBRP 2003-2007 Chev/GMC 2500 HD 6.0L CC-SB Cat Back Dual Split Side 2001-2006 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2004-2006 GMC Sierra 2500 HD WT $664.99 |
 IN STOCK S6000ALTHE BEST BANG FOR YOUR BUCK - ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great cho... MBRP 2001-2005 Chev/GMC 2500/3500 Duramax EC/CC Cat Back Single Side 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2004-2005 GMC Sierra 2500 HD WT $604.99 |
 IN STOCK - DROPSHIPS S6001PTHE BEST BANG FOR YOUR BUCK - ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great cho... MBRP 01-04 Chevy Silverado / GMC Sierra 2500/3500HD 4in OD CatBack Single Side Exit w/ Downpipe - AL 2001-2004 GMC Sierra 2500 HD SLE / SLT 2002-2004 GMC Sierra 2500 HD Base 2004-2004 GMC Sierra 2500 HD WT $699.99 |
 OUT OF STOCK S6000PTHE BEST BANG FOR YOUR BUCK - ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy-gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great cho... MBRP 2001-2005 Chev/GMC 2500/3500 Duramax EC/CC Cat Back P Series Exhaust System 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2004-2005 GMC Sierra 2500 HD WT $484.99 |