Looking for aftermarket parts to modify or upgrade your 2018 GMC Sierra 1500 with catback? At Tunersports.com we carry a huge selection of the top name brand performance catback parts and accessories for your Sierra 1500.
Whether you have a 2018 GMC Sierra 1500 in Base to SLT trim we have you covered. We have 160 catback available to mod your Sierra 1500. All parts have free shipping to the Continental US 48 States.
 SHIPS FROM MANUFACTURER 5658For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Extreme Exhaust - Aluminized 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $538.71 |
 SHIPS FROM MANUFACTURER 5662For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Extreme Exhaust - Aluminized 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $538.71 |
 SHIPS FROM MANUFACTURER 5665For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in/2.25in Cat-Back Dual Extreme Exhaust - Aluminized 2014-2018 GMC Sierra 1500 Denali / SLT $538.71 |
 SHIPS FROM MANUFACTURER 65655For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 10-13 GMC Sierra 1500 SLE 4.8L 2.25in Cat-Back Dual Extreme Exhaust - Stainless 2010-2018 GMC Sierra 1500 SLE 2014-2018 GMC Sierra 1500 Base $690.11 |
 IN STOCK 65658For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 2017 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Extreme Exhaust - Stainless 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $671.19 |
 SHIPS FROM MANUFACTURER 65658BFor the extremist who wants to take their truck to the next level, this Black Elite dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. Each T-304 stainless tip is offered with a premium black finish applied with Gibs... Gibson 14-18 GMC Sierra 1500 Denali 5.3L 3in/2.25in Cat-Back Dual Extreme Exhaust - Black Elite 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $693.89 |
 IN STOCK - LOW 65662For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 14-18 Chevrolet Silverado 1500 LT 5.3L 3in/2.25in Cat-Back Dual Extreme Exhaust - Stainless 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $671.19 |
 SHIPS FROM MANUFACTURER 65665For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in/2.25in Cat-Back Dual Extreme Exhaust - Stainless 2014-2018 GMC Sierra 1500 Denali / SLT $671.19 |
 SHIPS FROM MANUFACTURER 65665BFor the extremist who wants to take their truck to the next level, this Black Elite dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. Each T-304 stainless tip is offered with a premium black finish applied with Gibs... Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in/2.25in Cat-Back Dual Extreme Exhaust - Black Elite 2014-2018 GMC Sierra 1500 Denali / SLT $712.79 |
 SHIPS FROM MANUFACTURER 65671For the extremist who wants to take their truck to the next level, this dual bolt-on Cat back system is for you. This system exists behind the rear tires at an aggressive angle with a powerful exhaust tone. You will gain bold street looks with powerful dyno tuned and tested street performance gains.... Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in/2.25in Cat-Back Dual Extreme Exhaust - Stainless 2014-2018 GMC Sierra 1500 Denali / SLT $671.19 |
 IN STOCK - LOW 5657For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 18-20 horsepower. Stainless dual Tip exit straight out the ba... Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $538.71 |
 SHIPS FROM MANUFACTURER 5661For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 18-20 horsepower. Stainless dual Tip exit straight out the ba... Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Aluminized 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $538.71 |
 SHIPS FROM MANUFACTURER 5664For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 18-20 horsepower. Stainless dual Tip exit straight out the ba... Gibson 14-18 Chevrolet Silverado 1500 LTZ 6.2L 3.5in/2.25in Cat-Back Dual Split Exhaust - Aluminized 2014-2018 GMC Sierra 1500 Denali / SLT $538.71 |
 SHIPS FROM MANUFACTURER 65654For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 15-20 horsepower. Stainless dual Tip exit straight out the ba... Gibson 10-13 GMC Sierra 1500 SLE 4.8L 2.25in Cat-Back Dual Split Exhaust - Stainless 2010-2018 GMC Sierra 1500 SLE 2014-2018 GMC Sierra 1500 Base $690.11 |
 SHIPS FROM MANUFACTURER 65654BDon't waste a split second! The Black Elite Series displays performance and style by giving you the ultimate choice where there's no need to decide. Take on adventure with the Black Elite Series Split Rear. Each T-304 stainless tip is offered with a premium black ceramic finish applied with Gibson's... Gibson 10-13 Chevrolet Silverado 1500 LT 4.8L 2.25in Cat-Back Dual Split Exhaust - Black Elite 2010-2018 GMC Sierra 1500 SLE 2014-2018 GMC Sierra 1500 Base $733.54 |
 SHIPS FROM MANUFACTURER 65657For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 18-20 horsepower. Stainless Tips exit straight out the back. ... Gibson 14-18 GMC Sierra 1500 Base 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Stainless 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $671.19 |
 SHIPS FROM MANUFACTURER 65657BDon't waste a split second! The Black Elite Series displays performance and style by giving you the ultimate choice where there's no need to decide. Take on adventure with the Black Elite Series Split Rear. Each T-304 stainless tip is offered with a premium black ceramic finish applied with Gibson's... Gibson 14-18 GMC Sierra 1500 Denali 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Black Elite 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $713.38 |
 SHIPS FROM MANUFACTURER 65661For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 18-20 horsepower. Stainless dual Tip exit straight out the ba... Gibson 14-18 Chevrolet Silverado 1500 LT 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Stainless 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $671.19 |
 SHIPS FROM MANUFACTURER 65661BDon't waste a split second! The Black Elite Series displays performance and style by giving you the ultimate choice where there's no need to decide. Take on adventure with the Black Elite Series Split Rear. Each T-304 stainless tip is offered with a premium black ceramic finish applied with Gibson's... Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Split Exhaust - Black Elite 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $713.38 |
 SHIPS FROM MANUFACTURER 65664For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 18-20 horsepower. Stainless dual Tip exit straight out the ba... Gibson 14-18 Chevrolet Silverado 1500 LTZ 6.2L 3.5in/2.25in Cat-Back Dual Split Exhaust - Stainless 2014-2018 GMC Sierra 1500 Denali / SLT $671.19 |
 SHIPS FROM MANUFACTURER 65664BDon't waste a split second! The Black Elite Series displays performance and style by giving you the ultimate choice where there's no need to decide. Take on adventure with the Black Elite Series Split Rear. Each T-304 stainless tip is offered with a premium black ceramic finish applied with Gibson's... Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in/2.25in Cat-Back Dual Split Exhaust - Black Elite 2014-2018 GMC Sierra 1500 Denali / SLT $713.38 |
 SHIPS FROM MANUFACTURER 65673For the enthusiast who wants an awesome look and aggressive throaty sound this Dual Split Cat back exhaust is for you. Gibson Exhaust Systems decrease backpressure and produce more torque and increased horsepower. Typical gains average of 18-20 horsepower. Stainless dual Tip exit straight out the ba... Gibson 14-18 Chevrolet Silverado 1500 LTZ 6.2L 3.5in/2.25in Cat-Back Dual Split Exhaust - Stainless 2014-2018 GMC Sierra 1500 Denali / SLT $671.19 |
 SHIPS FROM MANUFACTURER 65673BDon't waste a split second! The Black Elite Series displays performance and style by giving you the ultimate choice where there's no need to decide. Take on adventure with the Black Elite Series Split Rear. Each T-304 stainless tip is offered with a premium black ceramic finish applied with Gibson's... Gibson 14-18 GMC Sierra 1500 Denali 6.2L 3.5in/2.25in Cat-Back Dual Split Exhaust - Black Elite 2014-2018 GMC Sierra 1500 Denali / SLT $713.38 |
 SHIPS FROM MANUFACTURER 5663If youre looking to add a little style to your Truck or SUV and want to keep the exhaust from affecting your tow trailer, this Dual Cat back Exhaust System is for you, exiting behind the rear tire for a look that sets your vehicle apart on the street or in the dirt. Hassle free, bolt-on installation... Gibson 15-18 Chevrolet Silverado 1500 LS 5.3L 3in/2.25in Cat-Back Dual Sport Exhaust - Aluminized 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT $538.71 |
 SHIPS FROM MANUFACTURER 5666If youre looking to add a little style to your Truck or SUV and want to keep the exhaust from affecting your tow trailer, this Dual Cat back Exhaust System is for you, exiting behind the rear tire for a look that sets your vehicle apart on the street or in the dirt. Hassle free, bolt-on installation... Gibson 14-18 Chevrolet Silverado 1500 LTZ 6.2L 3.5in/2.25in Cat-Back Dual Sport Exhaust - Aluminized 2014-2018 GMC Sierra 1500 Denali / SLT $538.71 |