Spoon Sports Rigid Collar - Subaru R1 RJ1, RJ2 - Front Flywheels RCM Engineering - 14mm Stud

RCM Engineering - 14mm Stud Conversion

Incomparable with the past is the enhanced ���tire grip��� and ���mechanical grip���level

0L H4 2017-2018

It replaces the restrictive factory parts with hardware built to raise volumetric efficiency and pull down intake air temperatures (IATs)

reduce parasitic drag and tuck the OEM alternator closer to the block

Spoon Sports Rigid Collar - Subaru R1 RJ1, RJ2 - Front Flywheels RCM Engineering - 14mm StudDeveloped by Spoon Sports, the Japanese Honda tuning specialists, Rigid Collars are precision machined aluminium rings that lock your subframe to the chassis. Factories drill the subframe bolt holes oversized so components drop in fast on the production line, and that clearance stays for the life of the car. It leaves the subframe sitting a fraction off centre, dulling steering response and letting vibration through the floor. Fit a set and the bolts