thanks . i would assume that a catted x-pipe would produce about 4-6 rwhp less. this is just my assumption. i would have gone with a catted x-pipe, but when i bought the car it was already on. i plan on getting a upr powerpipe which "should" clear the STB. i've seen pics of it somewhere. its a tight fit, but it should fit under there. reason why i'm getting the upr powerpipe is b/c most of the faster cobra guys that i see are running these pipes, so it has to be good stuff:lol: .CTCOBRAGUY said:Those are nice numbers Stangin. I'm curious, if you had a catted X instead of the O/R X, how much less hp do you think there would be? I'm working on the same setup with the exception of catted vs. O/R. You mentioned you'll probably get a powerpipe as well. Do you think you'd be able to keep your strut tower brace on?
Nice Numbers :joy: