This center cap only fits: JR9 (15-18")

Despite its high-performance intentions

You can tune your steering geometry towards positive Ackermann in just a few minutes even at trackside without messing up the alignment

including sheet metal components

supplied with a 150mm long 1/4 UNF thread for fitment on a wide variety of turbochargers

Clutch Kit - Xtreme Performance Heavy Duty Organic 890Nm KGM30604-1A JR20 This center cap only 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 890Nm Clamp load Increased over standard Organic Friction Discs Heavy Duty Pressure