Upgrade your fuel system with MWR's billet fuel rail, fuel pressure regulator and return line kit. This kit is engineered specifically for higher power turbocharged and supercharged engines. The stock fuel system's returnless design simply will not keep up with high powered forced induction setups causing dangerous lean conditions which can wreck your expensive engine. Do it right the first time and upgrade your fuel system now before it's too late. The setups improving fuel distribution and provised precise control of fuel pressure. It also adds a professional, high end look to your engine bay. Looking for just a bolt-on fuel rail kit? This rail is also available as a simple bolt-on kit with no regulator or return line.