RCM PARALLEL FUEL RAIL KIT / STANDARD FUEL REGULATOR (UK, USDM & EURO SPEC MODELS) Engine - Fuel System_Fuel Rail Kits it offers a weight saving

it offers a weight saving of over 3 kg compared to the standard OEM flywheel — a significant reduction in rotational mass that transforms engine dynamics

Ideal for Imprezas developing up to 500bhp and with straight forward fitment via the inspection cover on the cars floor pan

straight forward fitment for that factory appearance

In a fully machined piston you don’t get any true grain flow structure as you are using the material as it is cut from the bar

but leave out the fact that their filters are not effective at filtering dust and dirt

RCM PARALLEL FUEL RAIL KIT / STANDARD FUEL REGULATOR (UK, USDM & EURO SPEC MODELS) Engine - Fuel System_Fuel Rail Kits it offers a weight savingParallel 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.