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Old 03-29-2005 | 08:45 AM
  #1460  
xtreme888
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Joined: May 2003
Posts: 225
From: london, uk
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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