Hey guys I have a question I just replaced the oil cooler and deleted the EGR cooler and purchased the SCT X4 can I run the performance tune without doing the head studs. I'm not looking to drag race or anything like that just looking for better MPG.
It has a street tune 85hp
performance 120hp
tow 65hp
tow 50hp
A friend of mine said it wouldn't be a problem as long as I don't tow with the performance tune in it.

 

I'd run 65hp tow tune go on you tube and type power stroke help and bill heath will show u some pistons that have been ran on performance tunes