B58 Transmission Tuning for BMW and Toyota Supra

The ZF 8-speed behind every automatic B58 is built to hold far more than the factory software lets it. xHP's Flashtool rewrites the transmission's shift and torque maps for quicker shifts, higher torque limits and better launches.

We're an xHP Pro dealer and flash the 8-speed in our Dallas shop, for Gen 1 F-series cars, Gen 2 G-series cars and the GR Supra. Email us with your VIN to book it. Below is the xHP WiFi adapter for flashing from your phone.