Dynojet Power Vision 4 `21-UP

great product works very well and works great

Noticed a difference right away

Easy to use, made noticeable difference in the performance of my bike.

I'm comparing this to what I have previously used (V&H FP3) on other bikes. There are no instructions inside the box, just a QR barcode that brings you to the website. Beyond that, you need to figure it out on your own. I found a tutorial on how to install which wasn't accurate as it states you can open an account through the app. That is incorrect, you need to click on the 3 dashes in top left corner and open account. Next, the link on their website to download the Vision Power app doesn't work, you get an error. Once I was able to download through Google Play and I verified my account through an email (needs to be done before you can use app), then I was able to scan for the PV4. Next, you need to "Read" the ECU as if you don't, you will lose your stock settings. Once I was ready to flash, it asked if I wanted to use the "Token" to flash the ECU. What? Evidently, you receive a token when you purchase and any future changes, you must purchase a token, I think? TBH, this was a very frustrating process as their instructions and steps are not very clear. There aren't very many tunes for my bike, maybe 4? The only positive is that the tuner is not VIN locked and you can flash other bikes. I heard the FP4 has major issues so, I went with this tuner. I noticed that it started up and idled better. Will update after I ride it a bit. At this moment, not impressed with this tuner.

Easy to install and use. Seen a difference in throttle response. A lot crisper.

First time using this brand of tuner, was simple. Easy to follow directions and bike was tuned in minutes

Says 21 and up but only works on 21 and 22

Order from the manufacture directly. Received the wrong parts 2 times and couldn't get any help from the manufacturer because the product wasn't ordered directly from them.