A while back I had a the exhaust redone on my 99 Chevy with the 5.7L 350. I had a dual in/dual out Magnaflow muffler with 2.5 in pipe and 3 inch tips. After having it for a while, I have decided that it isn't quite loud enough for me. Is there anyway to make it a little bit louder without changing mufflers? Someone suggested drilling a small hole in the pipes right before the muffler, but I am skeptic of that....would a CAI change the sound much if at all? Thanks for the input.