Thread: NHRA Super Gas Muffler requirements
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Old 06-28-2008, 08:05 PM
  #12  
prhjf
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Join Date: Apr 2006
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sg1586,

Which dynatech mufflers are you talking about?

dynatech has the

1. collector muffler.
2. slip on race muffler.
3. sprint muffler

Thanks
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