I can second that. I've been running the stock clutch with my TS for close to a year with no problems and it's making numbers similar to Nick's turbo.
Originally Posted by NickG@TechniqueTuning
The stock clutch is actually pretty stout. I've been using it in my turbocharged 330ci for nearly 2 years. My car puts out ~300rwft-lbs of torque and 315rwhp. So a naturally aspirated engine should let the clutch last a good long time.
04 IR 330i ZHP | ESS TS2+ SC | MagnaFlow "headers" | KMS 3.64 LSD | AST 4100 550/650| APEX ARC-8 18x9 | H&R front sway bar | Vorshlag camber plates, RTAB limiters | TMS subframe & swaybar reinforcements | UUC SSK & DSSR | UUC TM & TME | BW motor mounts | Dinan strut & shock tower bars | vaio 4-bolt oil pump