Thread: race mufflers??
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Old 07-18-2009, 07:22 PM
  #9  
OneBadGMC
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RACING JUNKIE
 
Join Date: Sep 2007
Location: Belleville, IL
Posts: 658
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http://www.youtube.com/watch?v=QIz2bSo8ScY

Yeah, Flowmasters are junk. :roll: I'm only making about 1600 crank HP through 4.5" Top 10s (probably more than that given the issues on that pass).
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