SQV Silver Off Valve BOV IV 4 +2" Flange Pipe +Clamps kit BLUE Silicone Hose Universal Fit All Turbochargered/Supercharger Cars Compressor Wheel 50 / 68 mm Turbine Wheel 54 / 61 mmT MAX HP : 360~400 HP @1.0 BAR Turbine Housing : 8 cm^2 These Turbos are Designed, Built, Balanced, and Tested to the World Leading Testing Equipments Makers Such as SCHENCKS and Mitutoyo.