Milwaukee Eight (M8) 2017 and up M8 Air and Liquid Cooled discussion
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Thunderheader slip on part number.

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Old Mar 3, 2018 | 01:56 PM
  #11  
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SomeOld Biker
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From: Olympia, WA
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About 7 months later...Update!!

I just ordered the Thundercones slipons part#1066 in chrome. Will let you all know what is what when they get here March 12, 2018.
 
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Old Apr 29, 2018 | 09:51 AM
  #12  
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SomeOld Biker
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Very happy with sound/performance with this setup.
 
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Old Oct 21, 2019 | 07:06 AM
  #13  
Jared O'Hare's Avatar
Jared O'Hare
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From: Nampa, ID
Default Wrong pipe?

Not to take over the thread but, just ordered and received the slip ons 1066B. I have an 18 RGS and right muffler is about 4 inches too short and 1/4” in larger diameter. Am I missing something, or is this gonna require me to fab an adapter? Kinda sh!tty if that’s the case, seeing as I bought it to fit the 17+ FLH. Anyone got any insight?
 
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Old Oct 21, 2019 | 09:09 PM
  #14  
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SomeOld Biker
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The M8 head pipe use different size diameters left and right side but the mufflers should be the same length.
 
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