CORSAs Patented Reflective Sound Cancellation(R) (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.. Corsa 2011-2013 Chevrolet Silverado Ext. Cab/Std. Bed 2500 6.0L V8 Polished Sport Cat-Back Exhaust. 3.0in. Cat-Back Single Side Exit with Twin 4.0in. Polished Pro-Series Tips. 11-13 GM 2500 6L 144.2in.; SSE TWN 4in. SPRT. 11-13 GM 2500 6.0L 144.2. Made in the U.S.A.. Cat-Back. Exhaust

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