So what's the 2025 thinking on MILVs?

[wolfe]

Been out of the loop for a while. Saw a whole bunch of controversy a while back with BDS motorsport saying they don't work, some forum posts claiming they bought fake MILVs, and of course no final resolution.

Neither BDS nor Bimmermilvs replied when I reached out to ask them what the final situation was.

All I want to know is whether there was a final answer with dyno proof on whether it's worth it or not.

Anyone know? Thanks

[spidertri]

I don't have any dyno graphs and honestly didn't know that people were claiming MILVs doesn't do anything.

Anyway, I added MILVs (bought from Marty) to my car in 2023 along with a tune update and I immediately noticed more power on the test drive. The only proof I have is that when I went to VIR in 2022 my max GPS speed at the end of the back straight was ~127mph, when I went back in 2023 with MILVs + retune installed I was able to hit ~132mph.

I did find the E90post thread that was talking about all this and the BDS claims, seems interesting that the guy ended up removing his post claiming there were no gains.

[wolfe]

Thank you, I appreciate the insight. It was all very strange, I watched the video and it kind of seemed plausible, although I'd have thought we'd see people having issues with the valves not completely closing.

[kashikoi]

From my understanding MILVs does nothing without a tune. I would imagine a tune alone would improve power and acceleration. So how much does MILVs really help along with the tune?

I have 3SIM, MILVs, AA catless headers, and a StageFP tune accounting those updates, with a 3.73 rear diff. Can't really say how much MILVs helped but I can say that everything together is just so damn good in this lil 1er.

I realize that doesn't really answer your question and just wanted to flex on my power mods