Just don't mod the sled and think that you still have warranty. Pulling the pipe to install/fix something is fine. The marks on the bolts are (I am 99% sure, as I am not in the factory) just tags to mark that they are torqued. Or another assembly line thing. Again, I don't know. BRP is not going to void your warranty for fixing an arm or installing a skid plate. The Skidoo BUDDS system is so complex, that it will report any increased boost, EGT temps, ECU mods (obviously) or fueling changes. BUDDS will report anything like that when the dealer downloads the report for a claim. THAT is what will blow your warranty. And it has been mentioned that the dealership has some control over warranty claims. They do. If the dealer doesn' t give a sheet, they can say no without trying to get it covered. Mile High Powersports in McCall does NOT do that. Every time I have an issue, Kristy says "I will submit it and see what they say." There have been few, but the recent one was a decal that was coming off the side panel (Badly.) It was covered. Keep that in mind when slamming your local dealership online. I am in good favor with MHPS, my local dealership, if you drag YOUR dealership through the mud publicly, you may not be. Just sayin......