+1 for
proTUNING Freaks Bootmod3 , only platform that supports all software versions and doesn't flash your car with a random version
There's various Dynos out there you can see from their instagram page and FB Bm3 group.
One example about 415whp 442wtq out of your B58 on a simple STG2 OTS 93 ONLY Mod is Downpipe
423whp/457wtq in SAE correction (439whp STD) for this B58 2018 340i��Customer shared this dyno earlier today running the latest v1.6 Stage 2 93 octane (98RON for those in Europe) OTS map. Peak power at just around 16psi. Mods: downpipe and intake. Flash and go in 3mins, switch maps in 19seconds, doesn’t get any easier to get started