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Old 03-29-2005, 09:37 AM
  #1461  
EdwardN
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Default Re: s4 piston ?

Originally posted by xtreme888
Hi Ed,

What is the s4 piston, and how that would improve performance ? I suppose that the S4 piston will wear away more slowly than the original one !!!

YGPM
S4 is new development in piston and it has been already partly release.
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