GFB EX50 Wastegate Replacement Parts & Accessories The GFB 50mm Wastegate has been designed to cope with the brutal conditions of extreme exhaust temperatures, the EX50 Wastegate features not only a huge flow capacity, but also a compact size that is unmatched by competitors for a 50mm wastegate. Springs available can be ganged together in various combinations to allow boost pressures of 7, 9, 13, 16, 20, 22 and 29psi. This is the largest range of boost pressures off-the-shelf. Body, valve and seat are made from high-temp stainless steel. - Actuator housing machined from billet 7075 aluminium - much stronger & harder than 6061 - Flow tests show that for the same valve lift, the EX50 outflows its nearest competitor by 18% - Internal valve shroud protects valve stem from excessive heat and prevents carbon-related sticking - Top-hat style Nomex-reinforced silicone rolling diaphragm for longer valve travel - Brass boost hose connectors - V-band clamp mounting system, supplied with 304 stainless weld-on adapters - Quality & Performance unsurpassed GFB EX50 Wastegate Replacement Parts Available are: Inlet Weld on (7043) Outlet Weld on (7041) Inlet Clamp (7151) Outlet Clamp (7151) Valve Seat (7031) Diaphragm (7181) 7 PSI Spring (7107) 9 PSI Spring (7109) 13 PSI Spring (7113)