The neighbour sort of behind me,his stupid kid has a Polaris and he has some insane can or pipe on their that makes these rumble packs sound silent.It is so loud you can hear him coming 2 miles away.My wife and I were watching a movie one evening when I heard this sound,jumped off the couch...the house vibrated.I didn't know what was going on.He continued to subject a few of us homeowners for a while,going down the gravel road between houses and all.Surprised no one called the cops.Kid is insane,am hoping for the cops to nail him one day beside the Hwy that he rides.I already made a jesture to him as he passed my house from the side field,with my finger turning it round and round beside my head showing how insane he was.He is a punk..thinks he is fast because he has all the noise..he must be deaf already.IT IS LOUD..like 10 times more then my rumble pack and I am not kidding.Icouldn't ride with noise likje that beside me all the time.