My 2021 M340i, Testing and Tuning. I got my ECU back from Femto and plan to make a detailed video on it.

Mods-stock
Fuel 93
Tune, my V1 base map which falls around the stage 2 range but more low and mid power with slight more top-end while keeping it happy with the stock dp. I will continue to dial it in more. The downpipe should arrive soon.

Stock 1/8 was around 90.8mph in 4500 DA. My tune has improved it a lot based on the butt dyno, we will see how she does.

Stay tuned for more 21 M340i Videos, I have plans for this car 😈

I plan to show stage 1, 2, My tune and the logs for comparison in upcoming videos in case people are curious or want to learn.

Shoot me an email jsrtuning@gmail.com

Thanks!

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