Ok so if i fit a set of Stainless downpipes to my S4, what else will i require as i am guessing my lambas will not be happy?.
I need to replace my rusty knackered original pipes, so i thought Decat stainless, and when my mates MOT's the car next year , we will just swap over.
Also while am here, anybody got a diagram to show best place to tap into for a Turbo boost gauge?
Love this Forum
thanks in advance