With a chip alone

Easily converted to a full atmospheric or full bypass unit by using supplied port blanking plug

while one vent-to-atmosphere port gives the classic Turbosmart blow-off valve sound we know and love

Aside from a calibration benefit

naturally aspirated engines

Clutch Kit - Xtreme Performance Race Sprung Ceramic 1400Kg (55% inc.) 850Nm KGM26001-1R Xtreme Performance With a chip aloneXtreme Performance Extra Heavy Duty Sprung Ceramic 1R Recommended for: Motorsport Applications 1R kits feature a sprung ceramic friction disc, but with even greater clamping force pressure plate for higher torque capacity. These kits are designed specifically for motorsport applications such as circuit, rally, drifting and drag racing. Specifications: Torque capacity 850Nm Clamp load 1400Kg 55% Increased over standard Sprung Ceramic Friction Disc