50mm external wastegate. Combining a compact body, superior flow path and high temperature resistance makes the Pro-Gate50 a market leader in its sector. Shielded diaphragm housing ensures excellent heat handling capabilities. Application: Suitable for high performance turbocharged engines with an external wastegate turbo system. Suits 2.00" outside diameter pipe. Fits older-style Pro-Gate48 and Power-Gate50 flanges. Supplied with 7PSI outer spring (fitted), 10 PSI middle spring, inlet and outlet weld flanges and V-band clamps, valve seat and (2) 1/8 NPT vacuum fittings. Kit Builder Packs available to customer specifications.