The brand new Turbonetic's RG-45 replaces the legendary Racegate in our wastegate lineup. Built with the latest technology such as stainless steel base, inconel high temp valve, high temp fluro-silicone diaphragm, and v-band connections all in a very small frame size. Like its name suggests, the gate has a 1.77''/45mm valve and is good for powerplants making up to 750 HP.