This center cap originally fits: JR6

Rolled Diaphragm

The Electronic actuation results in the widest possible tuning window from zero boost (if manifold priority allows for it) to all available boost

Set includes 21 pieces of spare rivets (replacement for single wheel) for JR-23 in Chrome color

Clutch Kit - Xtreme Performance Race Carbon Blade KSU24001-1P SL-04 This center cap originally fits:Stage 3 Clutch Kits Carbon Race Series Used by some of the most powerful time attack and drift cars in the world, the Xtreme Clutch single plate carbon clutch provides exceptional heat capacity for high horsepower vehicles. Recommended for: Xtreme powered vehicles requiring improved modulation