id go with a act hdss just to be safe or a equivelent clutch. mine is holding over 400whp no slips or issues except lock out at 8k rpm. besides no complaints

 

I ran the stock clutch for 5 years at 350whp. Last year I installed an EF2 turbo and began noticing slip in the upper rpm range. I installed a competion stage 2 clutch and am very happy with it.

I paid $300 shipped from driveline motoring. I believe the link is drivelinestore.com.

I think English racing has a thread about the clutch but they charge quite a bit more for it.

 

My stock clutch is still holding strong, 380whp, 400wtq, at 36k miles. Been modded for over a year, 6500 miles, no launches on it ever.

 

This/\

I have a ix with full bolts and a comp Stg 4 and love it. I had an act hdss and the comp feels lighter on the foot and has a smooth engagement