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OS 55AX and pitts muffler

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Old 09-11-2011, 01:42 PM
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Ernie Misner
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Default OS 55AX and pitts muffler

Greetings, Tower only advertises the # 4046 Bisson pitts muffler for the 55AX and it fits the 46 as well. However on the Bisson web site they have the #4050 specifically for the OS 55. I assume it has more volume for the larger engine. So..... is the #4046 really adequate for the 55 AX? Can you get me the #4055 for my 55AX?

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Ernest Misner
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Old 09-12-2011, 05:47 AM
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Bax
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Default RE: OS 55AX and pitts muffler

We're the O.S. support center, so WE cannot obtain non-O.S. parts for you. You will have to order from someone who sells Bisson mufflers.

Regarding the one for the .55, It may have a slightly-higher volume or flow-through than the one for the .46, or it may just be rebadged for those who MUST have one specific to their engine. Please contact Bisson for details.
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