I understand, that can be the hard part. Just because someone has a dyno or works for a place that has one doesn't mean squat. I've traveled 800 miles with my sportbikes to get tuned by a good reputable guy.

 

As several have said, even an OEM tune on a stock bike, tends to be lean for EPA requirements. Many people enjoy better performance with a stock improved tune... but it is not necessary...

There are two parts to your tune. One is closed loop, where there is feedback and adjustments from the ECM based the feedback and changing conditions. It mostly covers the low/med load portions to include cruising. The second part of the tune, is the open loop portion. There is no feedback, the ECM makes adjustments based on what the tune parameters are set at, for the original air flow of the engine.. the open loop portions cover the extremes of the tune, including high load and wide open throttle portions of the tune.

This means, if you lean out the tune due to a high flow air cleaner AND high flow mufflers, the ECM can adjust in the low/medium load sections of your tune. However, it will be even leaner than OEM, at the high load, extreme portions of the tune, where the AFR can be most critical.



Contrary to popular belief, the CAT does not cause as much of a restriction as many people think. By just removing the CAT, you have not significantly increased the air flow through the engine. You should be fine as long as you don't add both an air cleaner AND high flow mufflers...

To prove my point..... When I went stage I (Air Cleaner and high flow mufflers on Catted OEM headpipe), I bought a PowerVision tuner from FuelMoto. I exchanged a few emails with one of their tech people. I asked that the PV include a tune for my bike/mods. I explained that in the near future (money was currently tight) I would also buy their Jackpot 2-1-2 ceramic coated head pipe (no CAT). He told me that he would include a Stage I tune for my bike/mods, and when I went to the decatted head pipe, I wouldn't need another tune.... About 8 months later, I bought their Jackpot 2-1-2 head pipe. I also requested a PV tune for my bike with high flow A/C, high flow mufflers, and their Jackpot 2-1-2 head pipe. The tune they sent was the same one I already had... Always the skeptic, I ran an 30 minute basic auto tune on that base map after adding my new decatted head pipe. The first 30 minute auto tune had an average cell change of only 4%.... that's means it was a pretty good tunefor my bike/mods as few changes were needed, and the bike ran very well....




As also mentioned, with a decatted head pipe, your power train warranty is already over...

In any case, I would suggest a flash tuner instead of a piggy back tuner. I've never been a fan of a device that plugs in between the O2 sensors and ECM and "fools" the ECM into adjusting the tune parameters. I'd much rather put a good tune map in the ECM and let it do its job as designed.

If you buy a PowerVision from FuelMoto, you will get lifetime maps, & map support from Fuelmoto, AND you will also get support from DynoJet, the manufacturer of the PowerVision tuner.... DynoJet can be quite helpful with tunes and issues too...

Additionally, the PowerVision tuner will be the last tuner you will ever need. It will support maps for just about any mods you can consider, it is used by many, good dyno tuners, and for $199, you can add friend's bikes and/or add a second bike and/or add a new bike should you sell the one you have now...

I have a PowerVision tuner that is licensed for 3 of my EFI bikes, and 3 EFI bikes belonging to close friends.... it's easy to use, very intuitive, and kind of fun if you get into the auto tuning and other aspects of the tune....

Good luck with your decision...

 

Make it simple call fuel moto and ask them what what would be best. They will set you up and it will be right. Getting a map from them will improve a lot on the bikes performance.