Your V-twin acts as a series of systems that depend heavily on one another. Harley fuel injection modules are an important - but oft overlooked - piece of the puzzle. In the all-too-common world of performance modification, the intake and exhaust tracts are often upgraded without paying much attention to the fueling needs of the engine. Be it carburetors or fuel injectors, Revzilla understands the importance of maintaining a proper air-to-fuel ratio. We offer Harley fuel controllers that range from simple 'bolt and go' items right up to whizzbang gadgetry offering a dazzling array of configurability. We can guide you through your hot-rodding project, whether you are modifying using simple bolt-on pieces, or a full-on high compression stroker motor with forced induction.