BOOST MV-R 50mm Universal Wastegate BOOST;s line up of high performance, race proven Wastegates. BOOST Waste gates are trusted by the biggest names in the racing industry. With so much depending on the performance of the valve, its no mystery team leaders choose to equip their cars with the best. BOOST Designed V-Band Clamps and Flanges are manufacture in house. Investment cast Stainless steel and CNC machined flanges ensure a secure and pressure tight fit. BOOST;s MV-R is equipped with the racing valve stem. The Wear Coating is resistant the THE corrosive effects of Lead oxide which is present when running leaded racing fuel. Included with every BOOST V44: MV-R Assembly MV-R Valve Seat Inlet V-band clamp Inlet Flange Outlet V-Band Clamp Outlet Flange 2 BOOST Air Fittings Features:: High temp NiCrFe based alloy is used for valve and 347SS valve housing Offers longer product life compared to competing designs. High temperature silicone Nomex reinforced actuator diaphragm. 17-7 PH Stainless Steel actuator spring gives consistent pressure At high temperatures, resists "relaxing" at temperature to 900F (483C). Nitronic 60 Stainless Steel is used for the valve seat, and valve bushing. All Stainless Steel hardware. Mating weld flanges are 304L The Ultra compact design fits in very tight spaces, with the unit standing only 4.17" tall, more compact than any other 44+mm external waste gate. on the market today. V-Band inlet and outlet make installation easy, flanges and clamps are in the box! Integrated -4 AN water cooling ports that cycle a small amount of coolant through the actuator top to keep the temperatures down in extreme conditions such as road racing. All units are leak tested after installation from the factory and can be removed if not utilized.