I'm not looking to reflash my ECU, but a tuning box thats plug and play would be nice. I know it wont produce as much power as the ECU tune, but I know they can work very well. JB tunes on the BMW motors worked miracles, had one for my old N54 engine and it was as good as any ECU tune I've ever had.

https://www.vividracing.com/tuned-ec...152508220.html

Just curious if anyone has tried this or seen actual result.

Thanks!

 

Interesting. I'd love to hear from others as well if any have used it. Especially because of this.. "Because the tuning box is a plug and play device, it can easily be removed for warranty purposes without any trace from factory diagnostic tools."