Thread: Best hp gains out of a 617
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Old 09-14-2012, 06:53 AM
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oldsinner111 oldsinner111 is offline
lied to for years
  
Join Date: Nov 2008
Location: Elizabethton, TN
Posts: 6,249
My dyno butt says my straight exhaust, and cold air setup, gave it 15 hp.
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1999 w140, quit voting to old, and to old to fight, a god damned veteran
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