Spoon Sports Rigid Collar - Honda STEP WGN RF4, RF6, RF8 - Front 53010-SEA-900 with the correct spring seats

with the correct spring seats and retainers

Eventuri's patented Venturi filter housings cut flow restriction and hold a laminar path to the turbochargers

a thickness of 17mm

or when fitting the RCM exhaust systems RCM632

Spoon Sports Rigid Collar - Honda STEP WGN RF4, RF6, RF8 - Front 53010-SEA-900 with the correct spring seatsDeveloped 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