Spoon Sports Rigid Collar - Mazda Roadster ND5RC - Full Kit clearance30 Typical OEM boost controllers are

Typical OEM boost controllers are of the 2 Port variety and operate by bleeding off this pressure signal between the boost source and wastegate

4 cylinder heads to fit this seal

gyroscopic forces and sudden ramp up/down of shaft speed due to sudden changes in engine RPM

TC-4 is now available with the full-face 5-spoke wheel

FK8 and FL5

Spoon Sports Rigid Collar - Mazda Roadster ND5RC - Full Kit clearance30 Typical OEM boost controllers areDeveloped 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