I just wanted to take a minute to give credit where it’s due, huge shoutout to the team at BPM Sport for their tuning work on the E9X platform.
After running my M3 with a catless Valvetronic Designs straight pipe for about a year untuned, I finally decided to get it properly dialed in. I went with BPM’s Stage 2 tune, 93 octane, and the difference is night and day.
The car feels incredibly refined now, throttle response is sharper, mid-range power is stronger, and the top-end pull is unbelievably smooth all the way to 8,600 rpm. Cold starts are clean, idle is stable, and it honestly drives like a completely different machine. Everything about it feels cohesive and balanced now.
Wanted to share my experience since some people could be undecided on a tune.



Massive thanks to Mike and the BPM crew for continuing to support this platform with quality tuning.
After running my M3 with a catless Valvetronic Designs straight pipe for about a year untuned, I finally decided to get it properly dialed in. I went with BPM’s Stage 2 tune, 93 octane, and the difference is night and day.
The car feels incredibly refined now, throttle response is sharper, mid-range power is stronger, and the top-end pull is unbelievably smooth all the way to 8,600 rpm. Cold starts are clean, idle is stable, and it honestly drives like a completely different machine. Everything about it feels cohesive and balanced now.
Wanted to share my experience since some people could be undecided on a tune.



Massive thanks to Mike and the BPM crew for continuing to support this platform with quality tuning.
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