1/2" Head Stud Kit to suit Nissan RB30ET (AR999-4216) Reducer Featuring a tool-free adjustment via

Featuring a tool-free adjustment via a rotating cap and a positive-seal piston this is Turbosmart loudest BOV

When designing this kit we set out to create a non-balancer-based crankshaft wheel as balancer casings tend to 'wander' far too much

Original listing as follows kept live for reference only:

PNP Style (PowerFC) or looking to retain your OEM wiring please see our igniter delete kits listed here

1/2" Head Stud Kit to suit Nissan RB30ET (AR999-4216) Reducer Featuring a tool-free adjustment viaPart number: AR999 4216 ARP 1 2" Head Stud Kit to suit Nissan RB30ET. Alternate part numbers: AR9994216 999 4216 9994216