5000+ miles on my stage 3 with the Al flywheel. No clutch issues at all. I took it easy for 800 miles and then have thrashed it since. This is my daily driver and I put 500+ miles per week on her. I do have a bit of a 'chunk' when shifting 3-4 at 6k rpm. I think that is a tired trans now that I have >60k of hard driving on the car. Anyway, the closing I come to a pure power shift, the mildier the clunk. Only do this at the track anyway

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Jeff Clevenger
'04 Blue, STS, Hotchkis Sway Bars
MP Rear Tension Stuts
H&R Coil Overs - set 14" hub to fender
Enkie RPF-1 17x7.5/Goodyear F1 GS D3 225/45/17
S0/AGP WGA Profec B Spec II 19/15/PTP Map Clamp/PTP FPR Mod
STS w/ Rage shifter bushings
Power slot rotors/Hawk pads
PTP stage 3 clutch & Al flywheel
PTP PVC check valve