The Fi2000« O2 digital fuel processor is designed to work with all exhaust systems (stock or aftermarket) equipped with oxygen sensors in place (closed-loop design) Increases horsepower and torque by optimizing stock lean air/fuel mixtures and helps cool the engine temps as well Pre-configured from the factory for your make and model, but easy to adjust should your specific application need it No confusing computer downloads to install No expensive dyno testing required Plug-in OEM style connectors. FI2000R CLP ROAD/STRTLNR