Great product. I notice a decent increase in performance at the top end that I had before. The only thing was my mechanic said that the jets that were recommended by Cobra for my bike left the bike very lean. He was able to get everything right with what was in the kit though. The bike runs better than ever and am very happy with the product.
I've had people try to tell me that this won't work "get the power commander V"... Well, I'm here to tell you, if you are changing your slip-on mufflers, head pipes, intake, or even cams, this thing works. I have had it on three bikes now and not only has it improved performance, I get better gas mileage, lower run temps, and no decel pop to speak of. Love the auto-tune feature.
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.
Install on my Yamaha Stratoliner was very easy, took less than 30 minutes. Luckily the tuner for my bike uses a 6 pin connector and not the injector connectors- so many seem to have a problem. Operation and tuning is easy. No PC needed and you can tune any time you want, even on the fly if you were to mount it where you can operate it while riding. That's not happening with a power commander! My bike runs much smoother and crisper now, throttle modulation is smooth and predictable. Fueling is much improved over stock. I have owned this tuner for about a month now and no regrets. Its exactly what my bike needed. *IMPORTANT* The Wiseco instructions for my bike are generic and not bike specific and neglect to tell you to disconnect the 02 sensor, which you SHOULD do. The Dobeck Performance web site (they make this tuner for Wiseco) is MUCH better for install and tuning info.