My cat is plugged. It's a 93 k1500 with stock cat. It has a thrush welded muffler single in dual out.

I'm looking to make it louder. Will cutting a little door on the cat, gutting the insides, and then welding it back on make it louder? I don't care about it being raspy or anything else for that matter. I just want it to be louder than it already is.