Complete set of 2 WPC Treated Intake Rocker Arm Shafts & 2 WPC Treated Exhaust Rocker Arm Shafts.

WPC is a proven process that has been utilized for many years in the racing and automotive industry. WPC is not a coating; it is a treatment that enhances the surface to reduce friction and strengthen engine parts.

Fits the following engine codes:
J30A1, J30A4, J30A5, J32A1, J32A2, J32A3, J35A3, J35A4, J35A5, J35A6, J35A8, J35A9, J37A1 (08-09 Only)