Spoon Sports Rigid Collar - Subaru R1 RJ1, RJ2 - Rear Engine Mounts TC-4 has side cut only

TC-4 has side cut only on the crotch of the spokes and their outer ends for maximum strength by the strength analysis without spoiling the advantage of the light weight

The size of the genuine brake disc of the FK7 HATCHBACK/FC1 SEDAN is 282 and 23 mm thick

Dyno results: max gains 10-12bhp (this may vary dependant on vehicle)

poor conformability

0L twin-turbo V8

Spoon Sports Rigid Collar - Subaru R1 RJ1, RJ2 - Rear Engine Mounts TC-4 has side cut onlyDeveloped 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