[Catahoulak9]

Check for mods loading duplicate files before this one. If the Corsair is your favorite (one of mine too) you may have another mod out there with PrattWhitney sound files loading before this one.

If you tried everything and your Corsair still sounds like a lawnmower, take a claw hammer and beat the muffler off your lawn mower and it'll sound just like a Corsair.