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Old 02-25-2009, 02:34 AM
  #34  
mtbkym01
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I've got the Sirio version matched to my Evo4 STI in my MP9 and am very happy with this combo, awesome power and delivery, and great run time, was getting 8 mins during break-in running really rich.

Originally Posted by Deznuts05
whats with the STi engraving?
"Sirio hand select and assemble the major components of the STI engines with crankshaft, case and rod individually numbered - so that you (and Sirio) know exactly what you're getting. The sleeve is handmatched to the crankcase for optimum flow characteristics, This is all part of the STI package"

Quoted from an RC magazine review of the STI Evo4
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