How much power is stock muffler good for?
But if you don't want to change the exhaust just install a cutout. This will help alot as well, but it wil be loud when it's open. If your wanting to stay stock for daily driving and have a lil power at the track a cutout is the way to go. Although it's even better to put on a 3" system with a cutout. Just my .02!
James






