300x cowls/covers fit on a 300xs?

[Chipster27]

I notice the new 300xs engine covers are a little different than a 300x, but is the base of the cover the same and if so, will they fit on a 300x or vice versa?

[cougarcat]

Not 100% sure, but I believe they are completely different and not interchangable with the "alien" style. The Opti's are just all around bigger than the 300X's. The 300XS's cowling is boxier and taller than the X's. Evidently they had to be bigger to accomodate the HPDI system.
CC

[Boatmaster]

Very different. Come on HPDI these are'nt Yamahas