Im not to sure, plenty of big HP cars use them, the FRPP units are balanced at a higher rpm about 10 to 15lbs lighter....Im under the impression that it really smooths out the drivetrain and gives a little quicker throttle response...I hope to match it at some point with an alum flywheel as well...combined should get rid of about 25lbs of rotational mass on the drivetrain which should make a nice overall difference.
I'll probably do the flywheel sooner then I want b/c the flywheel I have no, even after I messed with adjustment, doesnt really grab to hard, so its definitely not going to be able to handle my planned future mods
I think its a aftermarket stock replacement...which means it doesnt handle much at all