excellent effort. However, you should probably decrease the pitch and add more rumble noise into this mod.
https://www.beamng.com/resources/s65b40-m3-v8-engine-for-etk-k-series.3780/
Check out my creation and you'll see what I am on about.
Nevertheless, good mod indeed.
Cheers
S65 Sound for the ETK 800 1.0
You can now have an S65 on your 800 Series just like the real thing!!