IE ZF8 AL551 TCU Tune | Fits Audi C7/C7.5 A6/A7 & 8R Q5/SQ5 3.0T Supercharged

Love it

I love the tune, super easy to install. Very noticeable increase in power and customer service is superb!

I like the upshifts but...

The upshifts are crisp without any surge. The stock upshifts were slower than I'd have done with a manual transmission. Now the tach snaps to the RPM for the new gear. I knocked my rating a star because when I let off the accelerator after a momentary burst of speed it slowly and successively upshifts through the gears. This might be appropriate in a racing situation but for simple highway passing it is pointless. For example, If I firewall the pedal to pass and then wish to resume my former speed, I 'd rather it go straight to the appropriate gear for the speed and throttle setting.

2018 A6 3.0

After installing the stage 1 ECU the car needed the trans tune. Both installed as a package has really tuned this car making it a really fun car to drive and a sleeper. Well worth the money, the car is much quicker on the shifts, looking forward to the track soon.