It turned mine into a rocket. My 3.4" pulley was real nice off the line, but it started falling off mid range and was flat on the top end. Now it pulls all the way through, doesn't fall off at all. It really woke up the mods I have, made them all work nice together.
I think I can keep up with a mustang GT, just haven't found one at the right time yet.
If you find anything wrong with the PCM, don't hesitate to get in touch with them. They're cust service is great. They were more than willing to take care of me when they sent me a defective PCM.
_________________________
Bobby
Died 5/1/08, resurrected 5/15/08
ASCD SD hood, 17" Bullitts, Overkill PCM, 3.4" Pulley, NGK TR55IX, K&N 9" cone filter, JimmyC D/P, U-bend removed, Flowmaster 40 series, Hooker big bore tips with resonators, S/B brake lines, drilled/slot rotors, GMPP handling kit, KYB struts, F&R strut supports, HID's, LED's, 2.5" Air Dam, red GTP overlays on custom badges, white rear insert.