View our Specials! Coupon Code: SaveIn2026
Looking for aftermarket parts to modify or upgrade your 2011 GMC Sierra 2500 HD with catback? At Tunersports.com we carry a huge selection of the top name brand performance catback parts and accessories.
 SHIPS FROM MANUFACTURER 65650BThe Black Elite Series product line truly displays Gibson's commitment to dominating performance and style. Each T-304 stainless tip is offered with a premium black finish applied with Gibson's formulated process exclusive only to the Black Elite Series. For increased style and Performance, the seri... Gibson 11-19 Chevrolet Silverado 2500 HD LT 6.0L 3.5in/3in Cat-Back Dual Sport Exhaust - Black Elite 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $822.43 |
 SHIPS FROM MANUFACTURER 316516Gibson Single Side Exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. This is our best performing Exhaust System. Exits behind the rear tire. Quieter in the cab than any other Performance Exhaust. Dyno test results show it makes maximum torque and horsepow... Gibson 11-19 Chevrolet Silverado 2500 HD LT 6.0L 3.5in Cat-Back Single Exhaust - Aluminized 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $555.37 |
 SHIPS FROM MANUFACTURER 616515Gibson Single Side Exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. This is our best performing Exhaust System. Exits behind the rear tire. Quieter in the cab than any other Performance Exhaust. Dyno test results show it makes maximum torque and horsepow... Gibson 11-19 GMC Sierra 2500 HD Denali 6.0L 3.5in Cat-Back Single Exhaust - Stainless 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $720.54 |
 SHIPS FROM MANUFACTURER 616515BThe Black Elite Series product line truly displays Gibson's commitment to dominating performance and style. Each T-304 stainless tip is offered with a premium black finish applied with Gibson's formulated process exclusive only to the Black Elite Series. For increased style and Performance, the seri... Gibson 11-19 GMC Sierra 2500 HD Denali 6.0L 3.5in Cat-Back Single Exhaust - Black Elite 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $741.40 |
 SHIPS FROM MANUFACTURER 616516Gibson Single Side Exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. This is our best performing Exhaust System. Exits behind the rear tire. Quieter in the cab than any other Performance Exhaust. Dyno test results show it makes maximum torque and horsepow... Gibson 11-19 GMC Sierra 2500 HD Denali 6.0L 3.5in Cat-Back Single Exhaust - Stainless 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $720.54 |
 SHIPS FROM MANUFACTURER 616516BThe Black Elite Series product line truly displays Gibson's commitment to dominating performance and style. Each T-304 stainless tip is offered with a premium black finish applied with Gibson's formulated process exclusive only to the Black Elite Series. For increased style and Performance, the seri... Gibson 11-19 GMC Sierra 2500 HD Denali 6.0L 3.5in Cat-Back Single Exhaust - Black Elite 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $741.40 |
 OUT OF STOCK 106-0344BRExhaust Direct-Fit Replacement Exhaust Kit 106-0344 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. 106-0344’... MagnaFlow BRE Exhaust Kit 07-10 Silverado 2500 3500 6.0L 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $868.00 |
 OUT OF STOCK 106-0751BRExhaust Direct-Fit Replacement Exhaust Kit 106-0751 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. 106-0751’... MagnaFlow BRE Exhaust Kit 07-22 Silverado 2500 HD Silverado 3500 HD Sierra 2500 HD Sierra 3500 6.6L 2007-2014 GMC Sierra 2500 HD WT 2007-2024 GMC Sierra 2500 HD SLE / SLT 2011-2024 GMC Sierra 2500 HD Denali $963.00 |
 OUT OF STOCK 19026The MagnaFlow Street Series Cat-Back Performance Exhaust System 19026 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 2 Straight-Through mufflers ending in a Single P... MagnaFlow Stainless Cat-Back Exhaust 2015 Chevy Silverado 2500HD 6.0L P/S Rear Exit 5in 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $1,271.00 |
 OUT OF STOCK 19027The MagnaFlow Street Series Cat-Back Performance Exhaust System 19027 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 3.5in. main piping and 1 Straight-Through mufflers ending in a Dual S... MagnaFlow Stainless Cat-Back Exhaust 2015 Chevy Silverado 2500HD 6.0L Dual Split Rear Exit 4in 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $1,467.00 |
 OUT OF STOCK 19376The Street Series Black Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound. Features Black coated tips.... MagnaFlow 11-19 GM 2500/3500 6.0L 4in Single Passenger Side Rear Exit Cat-Back Exhaust w/Black Tips 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $1,368.00 |
 OUT OF STOCK 19377The Street Series Black Performance Exhaust system delivers dyno proven power with a comfortable interior sound and performance exterior sound. Features Black coated tips.... MagnaFlow 11-19 Chevrolet Silverado 2500/3500 HD V8-6.0L Dual Split Cat-Back Exhaust w/Black Tips 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD Denali / SLE / SLT $1,558.00 |
 IN STOCK - LOW S5076409RELIABILITY 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 11-19 Chevy/GMC 2500HD PU 6.0L V8 Single Side Exit T409 Cat Back Perf Exhaust 2011-2012 GMC Sierra 2500 HD Denali 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD SLE / SLT $724.99 |
 IN STOCK S60360409RELIABILITY 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 11-18 Chevy/GMC 2500/3500 5in Filter Back Single Side T409 Exhaust System 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD SLE / SLT $614.99 |
 IN STOCK S5076ALTHE 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 11-19 Chevy/GMC 2500HD PU 6.0L V8 Single Side Exit Alum Cat Back Perf Exhaust 2011-2012 GMC Sierra 2500 HD Denali 2011-2014 GMC Sierra 2500 HD WT 2011-2019 GMC Sierra 2500 HD SLE / SLT $574.99 |
 IN STOCK S6050PLMTHE 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 11-15 Chevy Silverado / GMC Sierra 2500/3500HD 4in OD CatBack Single Side Exit w/ Downpipe - AL 2011-2014 GMC Sierra 2500 HD WT 2011-2015 GMC Sierra 2500 HD Denali / SLE / SLT $499.99 |