Strange, when I contacted BMS and told them I have MPPSK on my 340i they said it doesn't matter as their system adds more boost on top of whatever the car has.
Quote:
Originally Posted by Crazyotter
This is my first BMW and my first turbo, so bare with
me.
It’s my understanding that the 2020 M340 has come from the factory with a more aggressive/less restricted tune AND possibly a better turbo than the 2019 model.
Thoughts?
Either way, I was looking at the JB4 and JB+ to spice it up even more. I connected with a guy from Burger and he explained that the JB+ wouldn’t even move the needle since the factory tune is so much better this year. He said that I’d have to use map 2 on the JB4 to see any gains.
That being said, if I’d have to be at map 2 to see anything, what kind of overall gains can I expect? I have no plans for any other upgrades at this time.
Thanks in advance for any help!
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