TwinTurbo.NET: Nissan 300ZX forum - That's backwards
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Subject That's backwards
     
Posted by Mongoose on August 06, 2015 at 7:28 AM
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In Reply To Awesome! posted by Drk93TT on August 06, 2015 at 07:19 AM
     
Message Those are "quarter wave" branch resonators. The longer the side branches are, the lower the frequency that they cancel out. Lower exhaust frequencies are produced at lower RPMs.

     
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