Spoon Sports Rigid Collar - Honda STEP WGN RF1, RF2 - Rear Flywheels Ultra Series valves are heat-treated

Ultra Series valves are heat-treated using a proprietary process for extraordinary strength and durability and Chromium Nitride coated using the physical vapor deposition (PVD) process

stainless steel item that directly replaces the standard OE section and replaces the standard catalytic converter for a high flow sports cat section

Inspired by the design of some of the most iconic racing engines

Genuine Subaru exhaust manifold to cylinder head gasket

specific to the G87 M2 for a tight fit

Spoon Sports Rigid Collar - Honda STEP WGN RF1, RF2 - Rear Flywheels Ultra Series valves are heat-treatedDeveloped 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