I'm happy with the performance improvement, motor seems smoother and cooler running with better power too. Only fly in the ointment is that this was designed for the first gen ST and the wiring harness is slightly different. It was still plug and play but the directions were inaccurate about locating the CO connectors and the harness was a bit short making a clean install tricky. Overall recommend the product but wish Dynojet would update the harness and instructions and make a 2014+ version.
I bought a Yamaha Roadstar 1700, got a great deal on it, it had aftermarket pipes and air cleaner but was jetted improperly causing a big lean condition. Bought the dynojet kit, the instructions were easy to follow and it came with plenty of jets for tuning. Got it all together following dynojet recommendations and it runs like a dream. Easy starts and great smooth power.
I had a 2007 R1 with a power commander 5 Graves full race exhaust and professionally tuned. And, you know those bikes only make a hundred and forty-nine horsepower stock mine was tuned to 172.8 the bad is R1 in the Midwest... Better ask somebody.
fantastic. cobra fuel processor messed up my bike for yrs...just didnt know it....dyno with its multitude of adjustments is proving that a bike with 70,000 plus miles, cobra sucked
being able to adjust each cylinder different is a must and it does this in a great fashion