Your DHP pcm already has some tuning done to it. I wouldn't worry about tuning further unless your getting knock. If you know someone local it wouldn't hurt to have them scan your car and make a few adjustments, but your not going to feel the kick in the pants. I'd say you gain maybe a couple mph in the 1/4 mile and a few tenths of a second in ET.Originally Posted by basshead42
I dont see a downpipe or front powerlog listed with that 3.4" pulley... I would get a downpipe for sure and it woudn't hurt to get a front powerlog either.
