08 Rmk 600 Cfi

Anyone had luck with pipes, silencers? Is it worth changing any of the motor intake, exhaust, gears,track or leave it stock? I have not found anyone building a silencer that give hp and saves any real weight. Maybe a turbo and more track is the ticket. We're hillclimbers and boondocking only! For stock the sleds very impressive little 6. Any advice.

I'm not getting must feedback either. From what I've found out there's a guy in Cooke that put a 163 on and is kicking butt. As far as mods its a little new, I guess. Kurts Polaris is doing a kit for 140-150 supposidly? A shaved head porting and pipe. PPP has a siliencer good For 4hp and 6.5 lbs saving. CPI is going to build a pipe? I think maybe stock and a turbo with a 163 may be the way to go. Stock with a 155 works very well, just need a little clutch work and more ponys, as does everything made.