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Old 03-29-2005, 08:45 AM
  #1460  
xtreme888
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Join Date: May 2003
Location: london, uk
Posts: 225
Default s4 piston ?

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
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