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Old 10-18-2004 | 01:05 PM
  #661  
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afm
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Joined: Nov 2003
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From: lima-peru
Default Re: powerband
Originally posted by XTREMERCHOBBIES
how does the powerband differ between the new sirio evo2(5-port) compared to the old sirio aac(5-port) engine? just a Q
Different crank timing, wider exhaust port. Has more bottom end and specially more top end.

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