Thread: newbie from arizona signed up to learn more about my new 04gtp

Originally Posted by SgtMarshal

running without a cat will lower your gas mileage. you can do a catted downpipe that will open up your exhaust and not affect your emissions.

False IRRC it's 01+ that actually rely on the O2 and if the cats deleted hell dump fuel and run rich as hell even with the catted he will most likely need to foul the O2 ask me how I know lol

Well false about the catted part not affecting emissions