Looking for in-stock aftermarket parts to modify or upgrade your GMC Sierra 2500 HD with catback? At Tunersports.com we carry a huge selection of the top name brand performance catback parts and accessories for your Sierra 2500 HD.
Whether you have a 2001 or 2024 GMC Sierra 2500 HD in AT4 to WT trim we have you covered. We have 165 catback available to mod your Sierra 2500 HD. All parts have free shipping to the Continental US 48 States.
 IN STOCK - DROPSHIPS 49-14002The Large Bore HD Performance Cat-Back exhaust features 4" 409 stainless steel tubing with smooth curves and increased size to help remove restriction and keeps exhaust gasses flowing smoothly. The OE style band-clamps and bayonet style hangers make sure this system installs cleanly and easily. Yo... aFe LARGE Bore HD Exhausts Cat-Back SS-409 EXH CB GM Diesel Trucks 06-07 V8-6.6L (td) LLY/LBZ 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $522.02 SALE |
 IN STOCK - DROPSHIPS 49-44001The new MACH Force XP exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque; and lower EGTs. MACH Force XP exhaust systems are the perfect combination o... aFe MACHForce XP Exhausts Cat-Back SS-409 EXH CB GM Diesel Trucks 01-05 V8-6.6L (td) LB7/LLY 2001-2002 GMC Sierra 2500 HD SL 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2005 GMC Sierra 2500 HD WT $631.74 SALE |
 IN STOCK - DROPSHIPS 49-44043-BEngineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE... aFe MachForce XP Exhaust 4inch DP-Back All SS 2011-14 GM Diesel Trucks V8-6.6L LML Black Tips 2011-2014 GMC Sierra 2500 HD WT 2011-2016 GMC Sierra 2500 HD Denali / SLE / SLT 2015-2016 GMC Sierra 2500 HD Base $764.20 SALE |
 IN STOCK 49-44123-BThis cat-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability. This system features a high-flow 409 stainless steel muffler, producing a deep sound. Finishing off this exhaust system is a 5" diameter black 409 stainless steel intercoole... aFe Apollo GT Series 4in 409SS Cat-Back 20-21 GM 2500/3500HD V8-6.6L L8T - Black Tip 2020-2021 GMC Sierra 2500 HD Base 2020-2023 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2023 GMC Sierra 2500 HD Pro $574.53 SALE |
 IN STOCK 49-44125-PThis DPF-back exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system is a 6" diameter polished 304 stainless steel intercooled clamp-on exhaust tip. The tip features an aFe POWER logo plate riveted on for a u... aFe Large Bore-HD 5 IN 409 SS DPF-Back Exhaust System w/Polished Tip 20-21 GM Truck V8-6.6L 2020-2021 GMC Sierra 2500 HD Base 2020-2024 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2024 GMC Sierra 2500 HD Pro 2024-2024 GMC Sierra 2500 HD AT4X / Denali Ultimate $431.89 SALE |
 IN STOCK 48947-BQuicker response, more power, low temp & more MPG Cuts back pressure, 4-inch constant-diameter DPF-back system, reduces tailpipe temps as much or more than stock and way more than others. Includes Cerakote Black Tip. US Patent #5,581,111 S1 Emissions Compliant: E.O. Not Required Fits all Cab and Bed... Banks Power 17+ GM Duramax L5P 2500/3500 Monster Exhaust System - SS Single Exhaust w/ Black Tip 2017-2019 GMC Sierra 2500 HD Base / Denali / SLE / SLT $519.00 |
 IN STOCK 48996-BStainless constant-diameter pipes and straight-thru muffler nearly doubles flow. Lower exhaust temps. Virtually no backpressure. Rich, throaty sound. Monster exhaust system flows better than stock and virtually eliminates backpressure. The streamlined intermediate pipe(s) and tailpipe are formed of ... Banks Power 17-19 Chevy Duramax L5P 2500/3500 Monster Exhaust System w/ Black Tip 2017-2019 GMC Sierra 2500 HD Base / Denali / SLE / SLT $569.00 |
 IN STOCK 48997-BBanks Power introduces the new 5-inch Monster Exhaust designed specifically for the 2020-2021 GM 6.6L Duramax L5P 2500/3500 HD pickup trucks. The DPF-back exhaust system features constant-diameter 5-inch mandrel-bent Aluminized Steel tubing and a massive patented tip which virtually eliminates backp... Banks Power 20-21 Chevy/GMC 2500/3500 6.6L Monster Exhaust System - Black Tip 2020-2021 GMC Sierra 2500 HD Base 2020-2022 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2022 GMC Sierra 2500 HD Pro $654.30 |
 IN STOCK - LOW 47786Stainless constant-diameter pipes and straight-thru muffler nearly doubles flow. Lower exhaust temps. Virtually no backpressure. Rich, throaty sound. Monster exhaust system flows better than stock and virtually eliminates backpressure. The streamlined intermediate pipe(s) and tailpipe are formed of ... Banks Power 11-14 Chev 6.6L LML ECLB/CCSB/CCLB Monster Exhaust Sys - SS Single Exhaust w/ Chrome Tip 2011-2014 GMC Sierra 2500 HD Denali / SLE / SLT / WT $399.00 |
 IN STOCK - LOW 48947Quicker response, more power, low temp & more MPG Cuts back pressure, 4-inch constant-diameter DPF-back system, reduces tailpipe temps as much or more than stock and way more than others. Includes Cerakote Black Tip. US Patent #5,581,111 S1 Emissions Compliant: E.O. Not Required Fits all Cab and Bed... Banks Power 17+ GM Duramax L5P 2500/3500 Monster Exhaust System - SS Single Exhaust w/ Chrome Tip 2017-2019 GMC Sierra 2500 HD Base / Denali / SLE / SLT $519.00 |
 IN STOCK 48996Stainless constant-diameter pipes and straight-thru muffler nearly doubles flow. Lower exhaust temps. Virtually no backpressure. Rich, throaty sound. Monster exhaust system flows better than stock and virtually eliminates backpressure. The streamlined intermediate pipe(s) and tailpipe are formed of ... Banks Power 17-19 Chevy Duramax L5P 2500/3500 Monster Exhaust System 2017-2019 GMC Sierra 2500 HD Base / Denali / SLE / SLT $549.00 |
 IN STOCK - LOW 48774Monster Performance And Modes price. Improves airflow up to 122 percent. Banks new Monster Sport Exhaust is one cool cat back system! And its low price. Thats way cool. The system slashes backpressure; increases exhaust flow; improves fuel economy and delivers extra power to your rear wheels. Ex... Banks Power 06-07 Chevy 6.6L CCSB Monster Sport Exhaust System 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $409.00 |
 IN STOCK 48997Banks Power introduces the new 5-inch Monster Exhaust designed specifically for the 2020-2021 GM 6.6L Duramax L5P 2500/3500 HD pickup trucks. The DPF-back exhaust system features constant-diameter 5-inch mandrel-bent Aluminized Steel tubing and a massive patented tip which virtually eliminates backp... Banks Power 20-21 Chevy/GMC 2500/3500 6.6L Monster Sport Exhaust System 2020-2021 GMC Sierra 2500 HD Base 2020-2022 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2022 GMC Sierra 2500 HD Pro $654.30 |
 IN STOCK 140429Borla Cat-Back And Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere.... Borla 09-11 Chevrolet Silverado / 09-11 GMC Sierra S-Type SS Catback Exhaust 2013-2013 GMC Sierra 2500 HD SLE / SLT / WT $1,265.99 |
 IN STOCK - LOW 140762Borla Cat-Back And Axle-Back multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, su... Borla 15-19 Chevy Silverado 2500 6.0L CC/STD Bed/153.7in WB S-Type Catback Exhaust 2015-2019 GMC Sierra 2500 HD Base / Denali / SLE / SLT $1,220.99 |
 IN STOCK 140762BCBorla Cat-Back And Axle-Back multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, su... Borla 15-19 Chevy Silverado 2500 6.0L CC/STD Bed/153.7in WB S-Type Catback Exhaust Black Chrome Tip 2015-2019 GMC Sierra 2500 HD Base / Denali / SLE / SLT $1,327.99 |
 IN STOCK - LOW 140833Borla 20-22 Chevrolet/GMC Silverado/Sierra 6.6L T-304 SS Cat-Back S-Type Exhaust - Brushed 2020-2021 GMC Sierra 2500 HD Base 2020-2024 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2024 GMC Sierra 2500 HD Pro 2024-2024 GMC Sierra 2500 HD AT4X / Denali Ultimate $1,233.99 |
 IN STOCK 140340Borla Cat-Back And Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere.... Borla 09-12 GMC Sierra 1500 / 09-12 Chevrolet Silverado 1500 SS Catback Exhaust 2013-2013 GMC Sierra 2500 HD SLE / SLT / WT $1,277.99 |
 IN STOCK 140341Borla Cat-Back And Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere.... Borla 09-11 Chevrolet Sierra 1500 WT/SLT/SLEi/XFE / Silverado 1500 WT/LT/LTZ/LS SS Catback Exhaust 2013-2013 GMC Sierra 2500 HD SLE / SLT / WT $1,265.99 |
 IN STOCK 140343Borla Cat-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive Borla Sound of Power respected by motoring enthusiasts everywhere.... Borla 09-13 Chevrolet Silverado/GMC Sierra 1500 4.8L/5.3L/6.0L Side Exit Catback Exhaust 2013-2013 GMC Sierra 2500 HD SLE / SLT / WT $970.99 |
 IN STOCK 24292dB by CORSAs patented Reflective Sound Cancellation® (RSC) Technology allows acoustic engineers to create a drone free exhaust sound, and a deep aggressive rumble. Computerized; mandrel bent; straight through design for maximum airflow which improves fuel economy and performance.... Corsa/dB 03-06 Chevrolet Silverado Ext. Cab/Short Bed 2500 6.0L V8 Polished Sport Cat-Back Exhaust 2003-2005 GMC Sierra 2500 HD Base 2003-2006 GMC Sierra 2500 HD SLE / SLT 2004-2006 GMC Sierra 2500 HD WT 2006-2006 GMC Sierra 2500 HD SL $916.96 |
 IN STOCK K4110ADiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB SGL AL CHEVY/GMC 6.6L 2500/3500 01-05 2001-2002 GMC Sierra 2500 HD SL 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2005 GMC Sierra 2500 HD WT $379.60 |
 IN STOCK K4110A-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB MFLR RPLCMENT PIPE SGL AL: 01-05 CHEVY/GMC 6.6L 2500/3500 2001-2002 GMC Sierra 2500 HD SL 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2005 GMC Sierra 2500 HD WT $324.50 |
 IN STOCK - LOW K5126A-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 5in CB MFLR RPLCMENT PIPE SGL AL: 2006-2007.5 CHEVY 6.6L 2500/3500 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $392.94 |
 IN STOCK - LOW K4110S-RPDiamond Eye Manufacturing is recognized as being one of the most modern and progressive companies in eastern Oregon. The company has invested heavily to incorporate several CNC mandrel bending machines and support equipment, Enabling us to produce the finest exhaust components in today's marketplace... Diamond Eye KIT 4in CB SGL MFLR RPLCMENT PIPE SS 01-05 CHEVY/GMC 6.6L 2500/3500 2001-2002 GMC Sierra 2500 HD SL 2001-2005 GMC Sierra 2500 HD SLE / SLT 2002-2005 GMC Sierra 2500 HD Base 2003-2005 GMC Sierra 2500 HD WT $392.94 |