Kiwi_BMW 89 Report post Posted February 7, 2022 Well this looks promising, replacing the 6hp with a 8hp although quite a good idea it seemed be quite a challenge, but after looking at this it looks like it isn't the challenge it used to be. ZF 8 Speed Swap | E46 Fanatics Forum But is it refined enough to be just wire up the harness, fit the trans and drive it, or do you have to spend countless hours programming it and teaching it to shift? One of the benefits of the latest technology, the software adapts to your driving style and the wear, thus adjustments etc have become a thing of the past, they still need serviced despite what the manufacturer says. 2 Quote Share this post Link to post Share on other sites