I havn't gotten any new upgrades (Performance wise) since I got my tune/exhaust/cai. I am thinking about getting some Cats since we cant get headers, Cats is really the only thing else we can do to our LTs :( what are some nice Cats that will work with our cars? Also right now I just have a normal CAI, is there a "better" CAI that I could upgrade to? Any other thoughts, opinions appreciated thanks