Hyway MS660 high compression piston

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BlackCoffin

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Anybody know any details on the Hyway high comp piston for ms660? Came across a picture from their Facebook page but can’t find anything else on it. Appears to have a raised dome and just drops in with no other modification?51EC3C06-68BE-4B1B-AEEF-B2391A026D37.jpeg
 
Just ordered one, got a ported 066 with no decomp cylinder it’s going on. Saw already is cranky to start...hoping this makes it crankier:chainsaw:
 

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