
Jonathan Duer (Jon)
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The app and is use are great. Completely changes the vehicle and how it acts. I wish there was a way for multiple "presets" on fumes for the customization module, or even a tune sharing platform for us to use and share our tunes with each other. Other than that, the app does everything you think it would, with no issues. Also, the new UI is great.
18 people found this review helpful

A Google user
Wanted to write a quick review on Stage 3 I have a 2013 335I drive with a JB 4 on stage 1. The transmission always felt like it wasn't matched to the car. Hard to describe it, it just felt off. Plus the kick down was terrible. I was very hesitant to install stage 3 because I drive this car for work and sometimes with clients in it. I couldn't have some boy racer hard shifting transmission. I went with stage 3 on a hope. Turns out its amazing, in daily driving in D, no one would ever guess this trans has been tuned. Even at full throttle upshifts in D, they are smooth and very quick. No jolt, no hard shift, nothing. It shifts exactly how it should have from the factory. M mode is incredible. It's like driving a stick, shifts are fast and smooth, and most importantly, they are done when you click the paddle. Haven't messed with S mode yet. Simply put, this is the best 200ish dollars I have spent on the car. I used an Amazon Fire HD tablet, and a 18 dollar cable off amazon. I didn't disconnect my JB4. Install was smooth with no problems. To anyone on the fence, buy it. It's worth it.
11 people found this review helpful

A Google user
This totally transformed my 535i. The only thing I didn't like about my car when I bought it was how slow it shifted. It was comfortable, but not 'sporty'. Once I read about this app, I had to try it. So glad I did. Using stage 3 setup, in 'sport', the transmission shifts so quick, and at the right point. In regular 'drive', you still get a comfortable cruise setup. Makes a world of difference!
8 people found this review helpful