GFB WGA 7305 Wastegate Actuator for WRX STI MY99-21 (single scroll turbo only) axela JASO MA approved to ensure

JASO MA approved to ensure perfect operating conditions for wet clutches

High performance PACALOY single valve spring set to suit OEM retainers and spring base

Outside Diameter: 18

Injector Seat Adapters

GFB WGA 7305 Wastegate Actuator for WRX STI MY99-21 (single scroll turbo only) axela JASO MA approved to ensureNOTE: does not fit twin scroll turbos such as those found on special models like Spec C Type RA. The WGA is a high performance bolt on internal wastegate actuator designed to bring boost on sooner and hold it longer! The WGA is all about increasing the area under the boost curve. With a larger diaphragm than the OEM actuator, the WGA has more control authority over the wastegate flap. This makes it harder for exhaust backpressure to blow the wastegate