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Old 12-30-2008 | 04:10 PM
  #1024  
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mtbkym01
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So these Extech's are Sirio based? I've just commenced break-in of a Sirio Kanai Evo4 STI, with Sirio 2056 (bat pipe) and am extremely impressed so far, and would like to run a similar set-up in my ST-RR. So if these engines are Sirio based, I'm also guessing the Big Boy pipe is also the same or similar as the Sirio 2056.

Cheers
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