Fi2000 Fi2000R O² Fuel Processor Softail 921632CL

Designed to work with all H-D exhaust systems (stock or aftermarket) equipped with oxygen sensors in place (closed-loop design). Works much like a carburetor jet kit with adjustments similar to the air-mixture screw, the needle and clip positions and the main jet. Pre-configured from the factory for your make and model, but easy to adjust should your specific application need it. Increases horsepower and torque by optimizing stock lean air/fuel mixtures (helps cool the engine temps as well). Quick and simple installation with plug-and-ride technology with OEM-style connectors. No confusing computer downloads to install. No expensive dyno-testing required. Improves overall rideability