Hey guys. Just need your help with my GF's 2001 Mustang. She would like an exhaust that would sound nice (wouldn't everyone!). I'm looking to buy her two mufflers (Mac probably)...what size inlet/outlet would be ideal? She doesn't plan on doing anything other than intake and exhaust. We already have a GT bumper...what size tip fits the bumper best? Thank you guys! Sorry if this topic is so repetitive. Your advice/suggestions are much appreciated!