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Thread: O.S. 91 FX w/Pitts style muffler
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Old 05-22-2018, 11:29 PM
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3D_PWR
 
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Default O.S. 91 FX w/Pitts style muffler
O.S. 91 FX w/Pitts style muffler and OEM muffler. Engine has only handful of runs. Powerful and clean.
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