Cobra FI2000R Powrpro Black - part number-(contact info removed)CL The Fi2000R O2 digital fuel processor is 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 The Fi2000R 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 Pre-configured from the factory for your make and model, but easy to adjust should your specific application need it Improves overall rideability Fits Harley-Davidson Heritage Softail Classic - FLSTC • 2012-2013 Softail Blackline - FXS • 2012-2013 Softail Breakout - FXSB • 2013 Softail Breakout CVO/SE - FXSBSE • 2013 Softail Convertible CVO/SE - FLSTSE 3 2012 Softail Deluxe - FLSTN 2012-2013 Softail Fat Boy - FLSTF 2012-2013 Softail Fat Boy Lo - FLSTFB 2012-2013 Softail Slim - FLS 2012-2013