Hello, first post here. I gutted my cats and removed the resonator & muffler in the center pipe, left the rear mufflers intact. I'm getting a raspy tone on mild acceleration, and what sounds like an exhaust leak under moderate acceleration through WOT. I double-checked the connections and even used some ultra copper on the flanges and fittings when I put it back together to make sure it's sealed up. Is this just the normal sound for these cars with the cats gutted or do I have something else going on here? I'll try to get video soon. Thanks!!