
Paul Walters
Paired with a DME tune I quickly realized xHP to be absolutely necessary. I am so glad I pulled the trigger. The transmission tune makes the engine tune work as it should by facilitating a flawless transfer of power. I did not realize that tuning the transmission would not only make my car shift faster, but accelerate faster all across the power band. This flash is worth every penny and will amplify the power increase provided by an engine tune in ways you hadn't imagined. I am very pleased.

Brian Stokes
Been a great app. And I enjoy being able to change my cars driving characteristics to my driving style. 10/10 would tell anyone with a zf-hp 6 or 8 speed to bite the bullet. You think your cars decently fast, use this app and see what it really is. I went back stock just to see if I noticed a difference. It's night and day. I'm on stage 3, stage 2 was alright, but 3 is life driving changing.

A Google user
Amazing application, turned my 435i into a beast. I have the pure turbo setup on my N55 435i, and I noticed an immediate difference in power and performance when installing this xHP transmission flash. Shifts are more aggressive, and the extra power doesn't feel like it's taking a toll on the transmission. With the stock software, I felt like the transmission was having trouble putting down the power, but now with xHP it feels so much better. Highly recommend installing this!
6 people found this review helpful