RCM ID Parallel Fuel Rail Kit / RCM Performance Fuel Regulator (UK, USDM & EURO SPEC MODELS) (Copy) Silicon Hoses_Samco Sport Limited Edition STI by Samco Sport Viper

STI by Samco Sport Viper Red Radiator Hose Kit 2001-2007

this radiator supports higher performance thresholds

This fitting kit is specifically designed for installing the RCM Twin Scroll Manifold Kit (RCM2003) on twin-scroll Subaru Impreza Turbo models

for EJ257 engines

To run the 25mm wide belt on pre-2025 year kit you will need to purchase RCM3790 upgrade kit

RCM ID Parallel Fuel Rail Kit / RCM Performance Fuel Regulator (UK, USDM & EURO SPEC MODELS) (Copy) Silicon Hoses_Samco Sport Limited Edition STI by Samco Sport ViperParallel fuel lines are a great addition to any engine, not only do they provide a more consistent volume of fuel to your injectors but they also yield key safety benefits. With Subaru's standard fuel system design, fuel is fed by a pump from the tank to the front of your car passing through the fuel filter (located in the engine bay) before being fed into the fuel rails. Fuel is then delivered to each cylinder one by one, starting with cylinder four.