It sounded great. Although it doesn't sound anything like an S85(or it's just straight from an engine camera), it still sure does sound good. The ones who DID vote 1 star are blind or just unfair, they did not see that this is your very first mod.
I literally made a account just now to tell you your engine mod sounds amazing! I downloaded it today to give it a shot despite the video constantly turning me away and the way you made it sound was like it came with the game. I really feel you should make a video of the updated version to reel in more people to download this mod. Outstanding job I love it.