Yamaha YXZ 1000R Power Commander Ignition ModuleThe Power Commander V is a unique fuel tuning device because it can monitor and maintain your air fuel ratio without directly changing the ECU. To reinstate your stock settings, all you need to do is uninstall the device, and youre done. Our Power Commander V is a powerful tuning device on its own, but what makes it a real powerhouse is the other compatible upgrades. From Ignition Modules for adjusting timing to Quickshifters and more, our Power