wow..anyone that says Corsa isnt loud enough at WOT havent heard one at WOT. I have them and at WOT they are ear piercing inside the car and even worse out..I've gone through like 5 different exhausts and Corsa is without a doubt the best out there. You can have a conversation in the car when cruising around but put your foot on the gas and your instantly in something sounding like a race car.. I cant say enough about these guys.