The IE Billet Fuel Rail for VW 12V VR6 engines is CNC machined in-house from 6061 aircraft grade aluminum to provide a beautiful one-piece design. These feature an -8an o ring boss ports, supplying enough flow for even the wildest setups. FInished in a strong black anodized color as a corrosive-free coating safe for race and ethanol fuels, also looks great in your engine bay. IE fuel rails retain the factory injector clips for added safety with no need to worry about injectors leaking. This fuel rail requires the use of an aftermarket short runner intake manifold, factory manifolds do not provide adequate clearance.