The GFB 38mm V-band style external wastegate features an investment-cast 253MA stainless steel body, a one-piece stainless valve and a nomex-reinforced diaphragm for high-boost, high-temperature use. It uses a V-band inlet/outlet compatible with Tial MV-S flanges, measures about 93mm overall and is supplied with a 10 psi outer spring; additional springs are available.
GFB EX38 38mm V-Band Style External Wastegate