4 lb lower, bbk shorties, ported and polished supercharger ( home port) cold air intake, matched fenderwell opening to cold air inlet. catless mids, i just put on a bassani catback, went from a busted flowmaster cat back to bassani catback, it is like night and day like sex for your ears. I cant stop driving it, It also feels like it has WAY more power or at least torque, with the new cat back, it really seems to tilt the front end up and throw you back more. i wonder why it feels so much more powerful even at low throttle with just cat back. It seems like it takes less effort to accelerate.