Hmm, that's funny beacuse my ACT 2600 pp and street disc looked like poo after 300 miles of 'light use' street driving and 1 race where I launched from 5500rpm. The springs felt like they were about to fall out, and there's a wall of ACT products at the shop that the springs already fell out of. Yes, TONS of people have made big #'s, gone fast, and experienced good reliability from an ACT clutch. But, the opposite is true as well and there are better clutches out there.