Thread: need some help (down pipe)

just wondering what should be done with the downstream 02? does it really matter? or can i just leave it off

You can leave it off on your 99 and deal with the check engine light if you want.

Or just leave it in the exhaust and deal with a check engine light if you arent running a cat.

Or try a non fouler trick.

Or get a tune and delete the codes.

lucky 97-00 bastards not having to worry about the rear o2

fk yea ill leave that btch off and not worry about idc about the cel lol

Originally Posted by slick2500

lucky 97-00 bastards not having to worry about the rear o2

I have an 04 and don't worry about a rear o2