125i trans tuning questions.

[jamiewalkaa]

I recently discovered that these have the Gm auto trans, I recently went from a manual to an auto and I’m devastated, I really want the most aggressive shifts and have it so it doesn’t up shift whenever there’s wheel spin when I’m doing a launch. How can I tune this shit so it’s not ass?? Ik u can’t do xhp like you can with a zf.

[Ethanplakso1]

Originally Posted by jamiewalkaa

I recently discovered that these have the Gm auto trans, I recently went from a manual to an auto and I’m devastated, I really want the most aggressive shifts and have it so it doesn’t up shift whenever there’s wheel spin when I’m doing a launch. How can I tune this shit so it’s not ass?? Ik u can’t do xhp like you can with a zf.

I've been trying to find out the same thing lol, I wish there was an easy tune to increase the shift speed and aggressiveness. From what I found there is a free online tune from bimmerlabs for our transmission, but I'm just not sure if it actually increases shift speed or It just shifts at higher rpm. I guess you could give it a try, but do it at your own risk and make sure you have the right obd cable.