I'm surprised Williams haven't designed a sports exhaust for it yet....together with a remap! Or perhaps they are!!
I believe that the exhausts ports differ from the Duratec, perhaps Lawrie can confirm....so you wouldn't be able to fit an earlier manifold. The cat is placed where it is to improve its efficiency and therefore emissions. Not sure if meeting emissions would prevent a sports system with the cat moved further downstream.
Last edited by Jays; 23/02/15 03:52 PM.
