I also thought it wouldn't matter, all you ever see as a sales gimmic is just about all f and h series clutch are interchangable. I also have a stage 3 ACT clutch in my lude but the disc is too harsh for my wife, it shutters alot so I am just going to use the exedy disc and act pressure plate, I should get the smoothness of engagement and the extra holding capacity. Also my throw out bearing is starting to squeel so it about that time to fix these problems.