This center cap originally fits: JR10 (15")

Either if it’s needed to maintain speed with high lock angles in drifting

INSTALLATION MANUALS 2

MILSPEC hard anodized valve

Clutch Kit - Xtreme Performance Heavy Duty Organic 290Nm 800kg (60% inc.) KNI23011-1A JR37 This center cap originally fits:Xtreme Performance sprung organic kit 1A Recommended for: Street use in vehicles with minor engine modifications. Sprung organic clutch kits offer exceptional driveability for vehicles used daily but also have performance modifications. The sprung organic disc offers improved dampening which reduces the shock loading on the transmission. Specifications: Torque capacity 290Nm Clamp load 800kg 60% Increased over standard Organic Friction Discs Heavy