brielly
12-13-2003, 08:14 AM
Anybody know what size exhaust is on our rigs? Ive heard that upgrading to a 2 1/4 or bigger exhaust can be a nice performance upgrade when swapping the 4.0 head onto the 258. Does this mean replacing all components- muffler, cat, etc? If so how much can I expect to pay? Would leaving it stock hinder the performance of the 4.0 head swap? Thanks