Instead of telling you it sounds like crap, which it does, a better discription is more along the lines of multiple chainsaws runing at once. There not lying when they tell you to keep it. I didn't listen like you probably won't and about 2 months later found myself having one put back in. On the other end I swear it had better throttle response without out it but not worth the horrible horrible sound. I might be crazy and that whole throttle response thing might be in my head.