Quote:
Originally Posted by Longboarder
Congrats. I'm still in break-in on my 2020 M8 but will tune through the BM3 with a custom tuner pretty soon. What advantages do you get with the stacked JB4? And as you know there have been a few blown motors on the 4.4TT platform already using E blends. How do you know how much is too much?
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You don’t , a lot of these modded M5s running more than 3psi over stock are already bending rods and don’t even know it. It then becomes a question of time, the closer they get to that 140mph trap the more likely it will occur.....