DNA Motoring For 99-06 Silverado Sierra 1500 EXT/Crew Cab Short Bed 3" Muffler Catback Exhaust System

Fit 99-06 Chevrolet Silverado 1500 Extended Crew Cab Short Bed Fit 2007 Chevrolet Silverado 1500 Classic Extended Crew Cab Short Bed Fit 99-06 GMC Sierra 1500 Extended Crew Cab Short Bed Fit 2007 GMC Sierra 1500 Classic Extended Crew Cab Short Bed Fits 4.3L 4.8L 5.3L 6.0L Engines 3 OD Inlet 3 OD Main Piping Dyno proven to instantly increase 15 to 25 horsepower or low end torque Designed to reduce exhaust backpressure for improved performance Enhances the sound of your vehicle for a more aggressive tone