Has anyone ever cut off their catalytic cinverters and ran without one? I have 1n 87 Renix 4.0. I'm wanting a loud, deep rumble. What muffler shoould I choose? I was thinking magnaflow or flowmasters. I'm not sure. I want it to sound deep and not like a race car. I was thinking about taking the cat off for a deeper, louder sound, but will it mess up my computer system or have any affect? Thanks!