Looking for 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.

OUT OF STOCK 49-14001The 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 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 $660.00 |
OUT OF STOCK 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 $660.00 |
OUT OF STOCK 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 $808.00 |
OUT OF STOCK 49-44002The 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 06-07 V8-6.6L (td) LLY/LBZ 2006-2006 GMC Sierra 2500 HD SL 2006-2007 GMC Sierra 2500 HD SLE / SLT / WT $808.00 |
OUT OF STOCK 49-44005The 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 combi nation ... aFe MACHForce XP Exhausts Cat-Back SS-409 EXH CB GM Trucks 1500 07-08 V8 119.0-143.5 WB 2007-2008 GMC Sierra 2500 HD SLE / SLT / WT $858.00 |
OUT OF STOCK 49-44006The 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 Trucks 1500 07-08 V8 157 WB 2007-2008 GMC Sierra 2500 HD SLE / SLT / WT $858.00 |
OUT OF STOCK 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 $967.00 |
OUT OF STOCK 49-44043-PEngineered 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 Polished 2011-2014 GMC Sierra 2500 HD WT 2011-2016 GMC Sierra 2500 HD Denali / SLE / SLT 2015-2016 GMC Sierra 2500 HD Base $871.00 |
IN STOCK - LOW 49-44122-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 3in 409SS Cat-Back Exhaust w/ Black Tip 2020 GM 2500/3500HD V8 6.6L L8T 2020-2021 GMC Sierra 2500 HD Base 2020-2025 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2025 GMC Sierra 2500 HD Pro 2024-2025 GMC Sierra 2500 HD AT4X $773.00 |
OUT OF STOCK 49-44122-PThis 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 polished 409 stainless steel interco... aFe Apollo GT Series 3in 409SS Cat-Back Exhaust w/ Polished Tip 2020 GM 2500/3500HD V8 6.6L L8T 2020-2021 GMC Sierra 2500 HD Base 2020-2025 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2025 GMC Sierra 2500 HD Pro 2024-2025 GMC Sierra 2500 HD AT4X $704.00 |
IN STOCK - LOW 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 2020-2025 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2025 GMC Sierra 2500 HD Pro 2024-2025 GMC Sierra 2500 HD AT4X $820.00 |
IN STOCK - DROPSHIPS 49-44123-PThis 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 polished 409 stainless steel interco... aFe 20-23 GM 2500/3500HD V8 6.6L L8T Apollo GT Series 4in 409 SS Cat-Back Exhaust System 2020-2021 GMC Sierra 2500 HD Base 2020-2025 GMC Sierra 2500 HD AT4 / Denali / SLE / SLT 2022-2025 GMC Sierra 2500 HD Pro 2024-2025 GMC Sierra 2500 HD AT4X $750.00 |
IN STOCK - LOW 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 20-23 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 $533.00 |

SHIPS FROM MANUFACTURER 47786-BThe Banks Monster Exhaust is engineered using computational fluid dynamics (CFD) software then tested on both dyno and on-road.Reducing backpressure allows the engine to expel spent gasses with less effort. Less pumping loss means more horsepower, lower EGTs, and improved fuel economy. The Monster E... Banks Power 11-14 Chev 6.6L LML ECLB/CCSB/CCLB Monster Exhaust Sys - SS Single Exhaust w/ Black Tip 2011-2014 GMC Sierra 2500 HD Denali / SLE / SLT / WT $399.00 |
SHIPS FROM MANUFACTURER 47787-BThe Banks Monster Exhaust is engineered using computational fluid dynamics (CFD) software then tested on both dyno and on-road. Reducing backpressure allows the engine to expel spent gasses with less effort. Less pumping loss means more horsepower, lower EGTs, and improved fuel economy. The Monster ... Banks Power 15 Chevy 6.6L LML ECLB/CCSB/CCLB Monster Exhaust System - SS Single Exhaust w/ Black Tip 2015-2016 GMC Sierra 2500 HD Base / Denali / SLE / SLT $449.00 |
SHIPS FROM MANUFACTURER 48996-BBanks Power introduces the new 5 in. Monster Exhaust designed specifically for the 2017-2019 GM 6.6L Duramax L5P 2500/3500 HD pickup trucks. The DPF-back exhaust system features constant-diameter 5 in. mandrel-bent aluminized steel tubing and a massive patented tip which virtually eliminates backp... 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 $549.00 |
SHIPS FROM MANUFACTURER 48997-B5-inch 409 stainless steel constant-diameter DPF-back system. Patented negative backpressure SideKick tip helps lower exhaust exit temps by 15%. Improves flow and cuts backpressure by 89% from the DPF and 9% at the turbine inlet, allowing the engine to produce more horsepower. Includes Huge Polished... 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 $657.42 |
SHIPS FROM MANUFACTURER 48998-B5-inch 409 stainless steel constant-diameter DPF-back system. Patented negative backpressure SideKick tip helps lower exhaust exit temps by 15%. Improves flow and cuts backpressure by 89% from the DPF and 9% at the turbine inlet, allowing the engine to produce more horsepower. Includes Huge Polished... Banks Power 11-15 Chevrolet Silverado 6.6L LML 5in Monster Exhaust w/ SideKick S/S Black Tip 2011-2014 GMC Sierra 2500 HD WT 2011-2016 GMC Sierra 2500 HD Denali / SLE / SLT 2015-2016 GMC Sierra 2500 HD Base $628.22 |

SHIPS FROM MANUFACTURER 47786The Banks Monster Exhaust is engineered using computational fluid dynamics (CFD) software then tested on both dyno and on-road., Reducing backpressure allows the engine to expel spent gasses with less effort. Less pumping loss means more horsepower, lower EGTs, and improved fuel economy. The Monster... 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 |
SHIPS FROM MANUFACTURER 47787The Banks Monster Exhaust is engineered using computational fluid dynamics (CFD) software then tested on both dyno and on-road. Reducing backpressure allows the engine to expel spent gasses with less effort. Less pumping loss means more horsepower, lower EGTs, and improved fuel economy. The Monster ... Banks Power 15 Chevy 6.6L LML ECLB/CCSB/CCLB Monster Exhaust Sys - SS Single Exhaust w/ Chrome Tip 2015-2016 GMC Sierra 2500 HD Base / Denali / SLE / SLT $449.00 |
SHIPS FROM MANUFACTURER 48947The Banks Monster Exhaust is engineered using computational fluid dynamics (CFD) software then tested on both dyno and on-road.
Reducing backpressure allows the engine to expel spent gasses with less effort. Less pumping loss means more horsepower, lower EGTs, and improved fuel economy.
The Monste... 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 48996Banks Power introduces the new 5 in. Monster Exhaust designed specifically for the 2017-2019 GM 6.6L Duramax L5P 2500/3500 HD pickup trucks. The DPF-back exhaust system features constant-diameter 5 in. mandrel-bent aluminized steel tubing and a massive patented tip which virtually eliminates backp... 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 489975-inch 409 stainless steel constant-diameter DPF-back system. Patented negative backpressure SideKick tip helps lower exhaust exit temps by 15%. Improves flow and cuts backpressure by 89% from the DPF and 9% at the turbine inlet, allowing the engine to produce more horsepower. Includes Huge Polished... 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 $657.42 |

IN STOCK 140429Borla Cat-Back and Rear Section 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 enthusiasts everywhere. Each system i... Borla 09-11 Chevrolet Silverado / 09-11 GMC Sierra S-Type SS Catback Exhaust 2013-2013 GMC Sierra 2500 HD SLE / SLT $1,433.99 |
IN STOCK 140762EXCEPT Vehicles with Dual Rear Wheels. This system features a 5" bright chrome on T-304 stainless steel tip. Borla(r) Cat-Back(tm) & Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, dri... 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 $1,419.99 |