Joined
·
51 Posts
Hi All, going to have 4.25 tune, Is 4 inch 102mm from cats back over kill ?? at The min its Stage 1 running 3 inch Y pipe back on a nice rusty standard exhaust, So could I just dump catted down pipes, and keep my 3 inch Y pipe and run new 3inch stainless Exhaust from that, is that ok or do you have to run the 4 inch fully from down pipes,
Cheers Stu
Cheers Stu