my buddy has had the dual ceramic LuK clutch for over 2 years now and is running 504 hp and 1026 ft/lbs holds great so far, i just got the same clutch, sort of, seams my pressure plate springs are a lot softer than his, but mins holding a 0 plate, no dyno numbers yet, he payed $800 for clutch and install, i payed $1000 clutch and flywheel, for the 12v. good luck