Brother in laws is a 25 ADV and it's still extremely loud . Thats why i will get an XP if i do decide to trade in the General, plus it has the dump bed. Motor wont be inside the cab with me . There are things that can be done to quite them down . My General XP4 was pretty loud ( not as loud as his )when I bought it . I bought 80mm sound deadening mats from Amazon and put them everywhere I could . Covered the entire rear firewall ( then installed a carpet kit ) removed the headliner and installed it on the roof , then reinstalled liner . Pulled the interior door skins and put it on the inside of both interior and exterior skin. Pulled parts of the tunnel and installed it inside there . Basically anywhere I could hear a hollow sound I used the mat . Same can be done on the Xpeditions. As far as break in just follow the Polaris guidelines and you will be fine . One trick is once the factory belt is broke in take it off and use it for a spare . That way, you don't have to limp back to the trailer/ camp on a new belt . Buy a Hunterworks Belt and break it in and use it as the main belt ( they are far superior to the Polaris belt) . Not sure on the clutch but if it uses the square pucks like ALL the other Polaris clutches, replace those with Hunterworks rollers . They reduce wear greatly .