Used for a a week long trip, then removed and sold bike. Works perfectly Unlock the full potential of your Yamaha WR450F with the Dynojet Power Commander 6 fuel injection tuner. The PC6 lets you fine-tune your fuel and ignition timing (where supported) for maximum performance, smoother throttle response, and reliable power across your entire RPM range. Featuring a plug-and-play setup, Power Commander 6 can be installed discreetly underneath your seat, dash, or other location, ensuring your bike will look as good as it rides! Once removed, your WR450F will revert back to it’s stock settings. Every unit comes preloaded with a base map, optimized for popular intake and exhaust combinations. Riders can adjust fuel and timing tables directly on top of this BASE map. More aggressive builds can be dialed in on a dyno for peak horsepower and torque. If you should need more adjustment, please contact your local Authorized Dynojet Dealer. Get even more performance out of your Yamaha by pairing this Power Commander 6 with add-ons such as the map accessory switch, Autotune, Quickshifter Kit, and Pod-300.