Thread: 7.3 engine mods
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  #8 (permalink)  
Old 02-29-2008, 08:35 PM
planeoldguy planeoldguy is offline
Compression Ignition Addict
  

Join Date: Mar 2007
Location: Not far from Folsom Prison
Posts: 663
Straight pipe it, he stock muffler is extremely restrictive, Cost me 75 bux, power increase was noticeable immediately.
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