xHP Flashtool

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.

This is a well-built app, and customer support is very good. Martin Paulik was timely with responding. While I was not happy with how Stage 1 and 2 performed as their base map versions, changing the settings, such as the shift map to Sportive or Sportive+ made the biggest difference, and I enjoy driving my car so much more now. Tuning is a little trial and error, so you should test different settings to suit your liking and how your vehicle responds to those changes.

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.