CORSA's Patented Reflective Sound Cancellation (RSC) Technology allows acoustic engineers to create a drone free exhaust sound, styled specifically to fit the personality of your vehicle. Each system is designed to increase vehicle performance, deliver an AGGRESSIVE SOUND under acceleration and a DRONE-FREE EXPERIENCE during cruise. Performance gains are not affected by sound choice. 2010-2015 Camaro Coupe and Convertible SS 6.2L Manual transmission ONLY 1LE Performance Package use PN 14971 Patented No Drone, Reflective Sound Cancellation (RSC) Technology No Drone At Cruise 304 Stainless Steel Construction