OK guys I have had my OEM cat on for a while now with the headers and it is not louder than it was before we installed the headers. My brother gutted his cat and I love the sound of his 93 Z28 now.

My question is: Can I take the exhaust off it and drill out the rear baffles and then blow the crap out by starting the car? I don't want to have to pull it off at the y pipe as it is connected by clamp and slid in. Let me know.