From looking at a few posts over on NASIOC I began to wonder if I have a weak STi. It very well could be that I launch at too low an RPM, I don't know. Anyhow I'm seeing that with a Stage 2 STi I should be trapping in the 105-107ish range, I've never trapped higher than 103. So here's my launch technique and shift points. I hold the revs at 5k, slip the clutch and I shift at 6250-6400 rpm every gear(and that's power shifting). Am I shifting too early? Am I launching at too low an RPM? Or do I just have a weak STi? I haven't put it on a dyno yet because I feel that dyno's are best used for tuning and I haven't gotten around to a pro-tune yet. Any thoughts? My best trap sock was 99mph, the above mentioned 103 was stage 2. Any thoughts?