OEM or Wiseco

Im rebuilding my 06 this winter top and bottom end and i was wondering if i should put an oem piston in or a wiseco? Im going to run stock compression so would there be any power difference? Or reliability issues with either?


i agree with yamirider. oem is the most reliable and seems to be cheaper lately

Oem x3

Oem is the only true safe way to go IMO.

Edited by Stinger1133
misspelled a word

If you are going with stock compression then there is no advantage to running anything other than OEM. OEM pistons are forged for these bikes, but cost half as much as a forged Wiseco or similar aftermarket brand.


okay thanks alot guys for all of the feed back i just ordered an oem top end kit

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