Horrible noise in 8th Gear!

HI, not sure if anyone else is hearing what I hear, but in 8th gear mainly, at a fast speed there's this horrible scratching noise that takes away from the upgraded motor sounds (which I love), but please fix that scratching noise. Not sure what it's supposed to replicate, maybe the wind. But it's horrible and a huge annoyance. Would be amazing if that can be fixed. Thanks.