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Looking for aftermarket parts to modify or upgrade your 1989 GMC C3500 with catback? At Tunersports.com we carry a huge selection of the top name brand performance catback parts and accessories.
 SHIPS FROM MANUFACTURER 65501For 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 88-93 Chevrolet C1500 Cheyenne 5.7L 2.5in Cat-Back Dual Split Exhaust - Stainless 1988-1993 GMC C3500 Sierra / Sierra SLE / Sierra SLX $655.58 |
 SHIPS FROM MANUFACTURER 615556LGibsons best performing exhaust is perfect for improved acceleration, maximum hill climbing, towing and passing power. Exits behind the rear tire near stock location with a polished Stainless Tip. Dyno tested results have proven increases as much as 32 horsepower and 60ft lbs of increased torque. Ha... Gibson 88-89 GMC C3500 Sierra 7.4L 3in Cat-Back Single Exhaust - Stainless 1988-1989 GMC C3500 Sierra / Sierra SLE / Sierra SLX $577.60 |
 SHIPS FROM MANUFACTURER 615571LGibson 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 88-93 GMC C3500 Sierra 5.7L 3in Cat-Back Single Exhaust - Stainless 1988-1993 GMC C3500 Sierra / Sierra SLE / Sierra SLX $577.60 |