![]() Before ECU flashing, they were the best solution on the market! Depending on the bike, they usually cost anywhere between $320 and a whopping $1250, take 1-3 hours to properly install inline with the bike’s fuel injection, and sometimes ignition, system. They allow for adjustment of the TPS (throttle position) vs RPM fuel mapping with a high level of resolution for most applications. Nels, and our technicians, have installed THOUSANDS of these piggyback fuel controllers on motorcycles over the past decade or so, because they’re a great tool for an experienced and qualified tuner to use when adjusting fuel, and sometimes ignition timing, mapping on a dyno when no other solutions are/were available. The single most popular piggyback fuel controller on the market is the Power Commander, but many others exist on the market (Bazzaz, RapidBike, EJK, etc). Until the late 2000’s, there simply wasn’t access to the mapping in stock ECU’s, so a piggyback fuel controller (a device that intercepts and taps into the fuel injectors, throttle position sensor, and sometimes several other fuel injection components) had to be used to tune and dial in a motorcycle. PLEASE, unless there is no quality ECU flashing available for your bike, don’t waste your money on a Power Commander, Bazzaz or any other piggyback style fuel controller! Quite simply, they’re a waste of money when there’s total control over the mapping in the stock ECU for most modern bikes on the market. ![]() This is going to be a long one, but we think that it is absolutely essential that anyone looking to maximize their motorcycle’s performance (and their own personal riding enjoyment) understand how to best tune and dial in their bike.
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