Spoon Sports Rigid Collar - Subaru Vivio KK4 - Front Denso The RCM 11mm Performance Head

The RCM 11mm Performance Head Stud Kit is the perfect addition to any high performance engine build

our patented Ultra Race Intake Manifold features massive increases in airflow

High performance ‘MAF Safe’ twin layer dry foam

Fitment: Honda Accord CL7

switching from the OEM equipment to any combination of our bushings

Spoon Sports Rigid Collar - Subaru Vivio KK4 - Front Denso The RCM 11mm Performance HeadDeveloped 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