Injector Dynamics 1300x Fuel Injectors w/ Top Feed Fuel Rails Subaru STI 2004-2006 vendor_IPR The Koyo SKC-13 radiator cap

The Koyo SKC-13 radiator cap is compatible and sold separately

Part #: 42313XS

The Stage 4 is street drivable but not street friendly due to the rigid hub

Valve Features:

25 inch Aluminum w/Pre-welded HKS BOV Flange

Injector Dynamics 1300x Fuel Injectors w/ Top Feed Fuel Rails Subaru STI 2004-2006 vendor_IPR The Koyo SKC-13 radiator capThe 1300x is an all new injector, designed by Injector Dynamics in partnership with Bosch Motorsport* This collaboration has given Injector Dynamics the ability to design a high flow injector with characteristics specific to the needs the high performance tuner. The 1300x was designed with alternative fuels in mind, and is the only performance injector available with all stainless internals. It is compatible with all known fuels, and will stand up to