Proton Series nitrous systems combine performance, durability and value in a compact and easy to mount module. Proton systems contain high quality, made in the USA, solenoids that are capable of producing 150 horsepower to the wheels. The black anodized a

Proton Series nitrous systems combine performance, durability and value in a compact and easy to mount module. Proton systems contain high quality, made in the USA, solenoids that are capable of producing 150 horsepower to the wheels. The black anodized a

4-Piston caliper 35mm diameter stainless pistons Maximum disc thickness 20.58mm Maximum disc diameter 330mm Minimum disc diameter 254mm Mounting centers 133.35mm

4-Piston caliper 35mm diameter stainless pistons Maximum disc thickness 10mm Maximum disc diameter 330mm Minimum disc diameter 254mm Mounting centers 133.35mm Mounting centers 133.35mm

4-Piston caliper 44.45mm diameter stainless pistons Maximum disc thickness 26.5mm Maximum disc diameter 330mm Minimum disc diameter 254mm

4-Piston caliper 35mm diameter stainless pistons Maximum disc thickness 26.5mm Maximum disc diameter 330mm Minimum disc diameter 254mm

Piston diameter 44.45mm Mounting flange spacing 82.55mm Disc thickness 9.65mm

Rotor thickness 31.75mm Rotor diameter 300mm Weight 2.7kg Material ---Iron