Are The Mufflers For T100 And T120 Interchangeable?

Discussion in 'Bonneville' started by Kamran Akhter, Nov 18, 2025.

  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  1. Kamran Akhter

    Kamran Akhter New Member

    Nov 18, 2025
    0
    1
    Los Angeles
    Just wondering if a 16-20 T120 muffler will fit on a 2018 T100. The mounting location seems to be the same on both. I have heard that the T120 mufflers are ~1" longer than the T100 ones, and the part numbers on the manuals are also different for the two models.
    Has anyone tried this?
    Thanks in advance.
     
    • Useful Useful x 1
  2. Robbi18

    Robbi18 Member

    Jun 15, 2025
    25
    18
    United States
    Yes, they will bolt on. The mounting points are the same. The T120 mufflers are slightly longer, so they might stick out a bit more on the back of your T100, but they'll fit and work fine.
     
    • Like Like x 1
    • Useful Useful x 1
  3. Kamran Akhter

    Kamran Akhter New Member

    Nov 18, 2025
    0
    1
    Los Angeles
    Thanks, @Robbi18 , for confirming that.
    Do you happen to know whether the slightly longer muffler would have any noticeable effect on backpressure, or on power and fuel performance? My assumption is that any change would be minimal, given that the T120 mufflers are only slightly longer, but I was curious if you have any information or data on how this impacts backpressure, exhaust scavenging, power, or fuel efficiency.

    Thanks in advance.
     
  4. joe mc donald

    Subscriber

    Dec 26, 2014
    15,822
    1,000
    slough / burnham
    @Kamran Akhter Welcome to the family. See you got your answer already. Do tap the upload a file button bottom right corner and show us all your T120
     
Loading...

Share This Page