Over 500 horses, and you can hear every single one of them. Stab the throttle and 427 cubic inches of race bred technology surges under the hood and thunders through 3 inches of military grade 321L stainless steel exhaust. Now throttle up and uncork an extra 10 horsepower and 14-lb/ft. of torque to the wheels. Now that the car is at speed you've noticed another difference, something that only Corsa Performance exhausts deliver. It's remarkably quiet inside the car. Sure you can hear the incredible power pulsing through your Z06, and it's obvious from the envious looks around you that others have noticed it too. How long has it been since you could actually listen to your stereo in the car and enjoy it, or talk to the person sitting right next to you? A true performance exhaust that is refined and respectful of music and conversation. It's amazing! All this great power, awesome performance sound and still no interior drone all thanks to Corsa's patented Reflective Sound Cancellation technology.