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OS 40 46SF FX 46 55AX Compact Side Mount Pitts Muffler
OS MAX 40 46SF  40 46FX 46 55AX Compact Pitts Muffler by Slimline
Bolt spacing is 1.450 center to center with 4-40 tapped holes
 
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Slimline Web Price: $59.95

Part Number: 3218
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Specifications
 
OS MAX 40 46SF  40 46FX 46 55AX Side Mount Engine Application

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 12 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 Great product and service May 7, 2020
Reviewer: Scott Oleson from Blaine , MN United States  
I purchased the Pitts Muffler for an older O.S 50SR. Perfect first and excellent sound. My engine wasn’t listed on the compatibility list so I sent an email. I had a response the next day with a part number. Definitely recommend Slimline.

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  0 of 0 people found the following review helpful:
 
5 of 5 Works great (longer 4-40 bolts) February 3, 2020
Reviewer: Eric Randall from Thonotosassa, FL United States  
The muffler worked like a champ.  Love the look and the sound dampening was as good as I'd hoped for.  I'd recommend that Slimline include longer bolts; when installed, they only protruded 1/8" from the engine and the muffler had 1/4" or so of threaded hole so it was not much for the muffler to grab onto.  Turns out that Slimline chose the common 4-40 bolt type (a good decision) so I just used longer ones I had around and things are fine.   I recommend the brand.  I spoke with the owner who is about to improve the site to indicate stock on hand because of the high demand for this product.

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  0 of 1 people found the following review helpful:
 
5 of 5 July 15, 2019
Reviewer: Peter Garich from Xenia, OH United States  


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  1 of 1 people found the following review helpful:
 
5 of 5 Pitts Style muffler June 3, 2019
Reviewer: John Bowman Jr. from Simmesport , LA United States  
Ordered a Pitts style muffler for my OS 55AX. Shipping was fast and the product was exactly as described. Very nicely built muffler.

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  0 of 0 people found the following review helpful:
 
5 of 5 Pitts muffler for O.S. 55. April 15, 2019
Reviewer: Anonymous Person from TOMBALL, TX United States  
Beautiful piece of workmanship.  Got my muffler in 3 days after purchase; thank you so much.  Would purchase again if needed.

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