The sound itself is very very good, but there is an issue with the rev limiter. The rev limiter sound plays to early which means you hear the sort of buzzing mechanical strain of the engine revving higher than it is supposed to, to early. And adjusting the ini files impacts performance, and is not possible on a lot of other cars. It would be great if the max RPM sound could play in higher RPM, or be removed. Other than that the sound is really really good, it's just a shame I cannot really use it because of this. Please try and fix this, it would bring the mod up to a solid 5 stars which it deserves for me!
So that something I can't "fix", , but the good news is that I will be releasing a 488 GT3 sound this week. You will be able to use that one with other cars more easily, since the sound has a higher rpm. :)