What exhaust will give the biggest power gain? Also, whats a good program to use to re-map the system, and are there any intake mods other than a K&N filter?
on pump gas probably 74 hp or so. you need a little engine work, not much, and some race gas to hit 80.Mr. Black said:What kind of power could a guy be looking at with a full M4 and no remap with a stock filter?
What does it take to get to 80 rwhp?