Hi, i've recently noticed my clutch slipping and want to replace it with something better than stock, Centerforce came to mind: two problems they've got two kind of series II one 160$, other 240$(at least that's what looked at firts which is better? and I plan to replace my engine with P79 do those have the same flywheel as my current motor? what about the light weight flywheel? Sorry for all those Q. Thanks.