11-07-2013, 03:10 PM
(This post was last modified: 11-07-2013, 03:13 PM by mitsirfishi.)
(11-07-2013, 12:42 PM)Bananalad Wrote: Would a 2.5 - 3" straight through make much difference to a standard size straight through? Not just performance but noise too?
2.5" isnt really a restriction until 500bhp

http://www.koracing.net/viewarticle.php?article=7
Good job Johnny !