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Old 07-22-2009 | 08:11 AM
  #1109  
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houston
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Originally Posted by clebo3
On a 09 +4 what is the best pipe for fuel mileage? An 053 or 086. I'm also running a 6mm restrictor.
more mileage from the low end to mid pipes like an 053 . throttle finger is where the most runtime comes from though
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