The SR56 is the choice for the performance enthusiast who wants the ultimate in engine power whilst maintaining stock turbocharger orientation. Ideally suited to a heavily modified Subaru engine of 2.2 - 2.5 L capacity. With flow capacity to produce 500 hp at 14.5 psi and 550 hp at 22 psi, this turbocharger is for the serious street/strip racer.

The new APS SR56 turbo comes with the Forge Motorsport Subaru Impreza WRX MY 02-on Adjustable Actuator. This product is built with a predetermined actuator spring suitable for at or slightly above factory boost levels.