I just read an article in snotech and BRP says all 2005 800 motors have the updated chrome rings. Also any ring flaking problems can be identified by an aprox 15lbs of compression loss. All rings for this motor that are sold by BRP are the updated rings and in addition to the updated better rings a severe duty or racing replacement is also available from BRP.tran-quill-icer said:04 800ho last year with 3600miles and no problems. Dealer installed new rings for the buyer this year and the tech told me there was signs of trouble just starting.(flaking)
I freind has an 04 800HO with 2200 miles on it, no ring problems.
I have an 05 800PT some it sholdn't be an issue