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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: 11 Write a review »

  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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  1 of 1 people found the following review helpful:
 
5 of 5 Pitts style muffler for OS .46AX March 14, 2019
Reviewer: David Hmiel from Hood River, OR United States  
Excellent workmanship.  Perfect fit.  If there's any concern, it would be that the pressure tap requires large fuel tubing rather that the more common medium tubing for this size engine.  Overall, a superb product.

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