Excellent trans tune that transformed my ‘17 A8 purple belt with stage 1 cams+springs. Noticeably less lag and power drop during shifts. The car is grabbing the next gear with authority compared to the stock calibration. Tour mode after the tune now feels similar to track mode before the tune. The transmissions definitely feels more sporty, snappy and responsive. Revving out to 7000+ rpm now is a great feeling as well. Automatic upshifting while being in manual mode is also a very nice touch.