- Sat Jun 11, 2016 12:14 am
#3857179
Confused on the decat topic. So people say the car will run lean with decat pipe but no one seems to say about runni g lean when fitting a catback system. As this makes it more free flowing would this not cause the same affect. Also i was under the impresion that the most resrictive part was the manifold so surly taking the cat off really would make no more diffrence than removing the centre and tail for free flowing parts as the mani would be restricting the flow still ?