Corsa 2003-2007 -06 Chevrolet Silverado Short Bed SS 6.0L V8 Polished Sport Cat-Back ExhaustCorsa 2003 2007 06 Chevrolet Silverado Short Bed SS 6. 0L V8 Polished Sport Cat Back Exhaust dB by CORSA's patented Reflective Sound Cancellation(R) (RSC) Technology allows acoustic engineers to create a drone free exhaust sound, and a deep aggressive rumble. Computerized; mandrel bent; straight through design for maximum airflow which improves fuel economy and performance. 3. 0in. Cat Back Single Side Exit with Single 4. 0in. Polished Slash Cut Tip