I have a 2018 440i x Drive Gran Coupe and I also have been researching the possibility of getting a tune.
I see that you got yours. Newbie here and I don't even know what I am looking at on those charts haha. Can you let me know - in simple terms . . do you notice a significant improvement after the tune? Was it worth the cost? Are there any drawbacks? Would you do it all over again?
Quote:
Originally Posted by Gottagofast
So I went with the 93 Stage 1 BM3 Mod and here are the results with 94 octane fuel as well as the weight of the car with half a tank of fuel:
2000 kilometers on the car and no oil change yet 
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