Well you can see my current setup and i was burning oil and i have to get a new motor. But im pretty sure my cats are screwed up so my dad said will just get a new midpipe. I have a catted h from mac. I want a catted x now but mac doesnt make one so which shorty x's are compatable with my headers? And im set on a catted x. I cant go o/r or prochamber cause that'd be way to loud ive tried it. The o/r are too loud. not for me i love them. I would run open headers but the problem is getting caught. Ive already been tailed twice when i had an o/r setup i was lucky enough to be right by my neighborhood so when i pulled in my driveway i got lucky both times. So i just need to know which catted x's are compatable with my Mac lt's... thanks