The PV cover is a very subtle change. Its a very minor tuning tweak not a fix for a factory flaw.
The squish mod is applicable to all 2-stroke bikes. The clearances are large to deal with questionable fuel in different parts of the world. Same with jetting.
The chainguide is OK, better than other OEM guides that bend and do not return. The LTR part is unique and a good idea if your regularly hammering through rocks and hitting it on a regular basis.
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