I have a 2003 GT and I'm finally putting some money into it. I want to get a X pipe and a catback system and I'm not worried about headers right now. I have my choices cut down to Bassani or SLP because of their high flow cats. I would rather have cats than an offroad pipe because everytime I get my car inspected they jack it up and look for them (dont know why it has the stock exhaust and its really quiet). What do you all think would be best?