and ensures the valves do not release boost when they shouldn’t

Cushioned Ceramic Friction Disc

It's not only smaller

360 degree swivel vacuum fitting

Toyota JZ to GM 26x28

Clutch Kit - Xtreme Outback Heavy Duty Sprung Ceramic KTY28040-1B Mazda and ensures the valves doXtreme Outback Heavy duty sprung ceramic kit 1B Recommended for: Motorsport Applications Xtreme Outback Ceramic upgrades have been designed to offer the ultimate in heat capacity for single plate upgrades and are designed specifically for motorsport applications such as endurance rally events and time trials. Available in Sprung Ceramic and Cushioned Ceramic, there are a wide variety of options to choose from depending on the vehicle use.