X2, those pistons will have less compression than your stock original pistons. Like 8.0:1 Those will make your engine even more lazy & come up on boost even slower than before w/your old set-up.

I also do not like the big chamfer on the top side of the piston where it will be more exposed to detonation.

Sorry to give you the bad news.


MBHD


12 port SDS EFI