I have an 05 sti with the xcceleration stage 2. a few hp shy of the three kit ,claims 340 whp / never had it on the dyno but the results are very impressive I don't know if you really read up on the kit but the gp moto piggy back has two selectable maps to switch from that account for race/pump gas, timing/all the other air fuel stuff and comes set up to run 18lbs of boost. I don't know if whp the numbers are true but I am pulling mid 12's on 93 octane. And yes the intake elbow is useless. The only bad thing with the kit is the manual boost controller, with drastic humidity/temp changes where I live I have already had to make minor adjustments to keep the boost level right, would be much easier w/ a good controller
Last edited by chuckwagon; 10-11-2004 at 08:29 AM.