DynoJet Auto Tune Kit Review http://www.revzilla.com/motorcycle/dynojet-auto-tune-kit-for-harley-davidson?utm_source=youtube.com&utm_medium=description&utm_campaign=DynoJet_Auto_Tune_Kit
DISCLAIMER:
Legal in California only for racing vehicles which may never be used, or registered or licensed for use upon a highway.
The Dynojet AutoTune kit is an excellent choice for riders looking for on-the-fly fuel adjustments. By analyzing your exhaust gas, the AutoTune is able to modify your fuel/air ratio many times per second, delivering maximum horsepower and performance, so you can concentrate on riding.