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Old 08-16-2006 | 10:40 PM
  #2422  
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jfc_tech
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Originally Posted by afm
Hi Pato, so long no talk....The difference between "B" and "E" is that the "E" has a one piece cooling head with head button, the "B" has a two piece design... cooling head and button are separate...rest is the same...just a question of economy (E)...and tuning option (you can't change to a turbo button on the "E" model...

Saludos
Alfonso
another thing is 21E is 3 port while 21B is 5 Ports
check here for details. STS Taiwan, Home of the STS engines.
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