CORSA 24892 dB Performance Polished Single Side Exit Catback Exhaust System with 4" Slash Cut Tip Patented No Drone, Reflective Sound Cancellation (RSC) Technology Custom Tuned, Aggressive Exhaust Note Flows Better Than Stock Lighter Than Stock Detailed Printed Instructions Included, Full-Color Available Online For application in Chevy/GMC Trucks Silverado/Sierra 2500 HD 6.0L with 143.5 inch wheelbase