CORSA's Patented RSC® Technology is designed for an aggressive sound under acceleration and a drone-free experience during cruise. Every system is engineered specifically to each vehicle without drone while cruising. Tips: Dual Rear Exit, Quad 4.5", Polished or Black Pro-SeriesFits: 2015-2015 Chevrolet Corvette C7 Z06 Convertible, Manual, 6.2L V8 2015-2015 Chevrolet Corvette C7 Z06 Coupe, Manual, 6.2L V8 2015-2015 Chevrolet Corvette C7 Z06 Coupe, Auto, 6.2L V8 2015-2015 Chevrolet Corvette C7 Z06 Convertible, Auto, 6.2L V8 Sound: Xtreme. Most aggressive sound level with a deep growl at idle and bold during acceleration. Screams at high RPMs. No drone during cruise. Flow: Average of 23.06% gain over stock Power Gains: Average increase of up to 4 HP Weight Reduction: 4 lbs. lighter than stock.Please allow 2-3 weeks for delivery. Special shipping charge of $75.00.