The increased flow is achieved through the efficiency of a straight-through valve versus a traditional poppet-style valve where the exhaust gas must be turned 90 degrees by the valve

the geometry has been altered to prevent any handling problems

They are plastic

Introducing the TS-0224-1425 BOV RacePort EM PlumBack Female GenV Sleeper

Clutch Kit - Xtreme Outback Heavy Duty Cushioned Ceramic 1250Kg (40% inc.) KNI25010-1C JRX12 The increased flow is achievedXtreme Outback Heavy duty cushioned ceramic kit 1C 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.