Are ALL Dyna exhausts interchangeable?
Thread Starter
|
Cruiser
Joined: Mar 2012
Posts: 241
Likes: 0
From: Easthampton, MA
What about aftermarket exhausts? If I can score a good deal on say, an aftermarket fat bob exhaust of the same year as my street bob, should it bolt straight up to my bike? I don't really see why not.
Stage II
Joined: Jul 2024
Posts: 2
Likes: 0
From: Tennessee
Yes the pipes are interchangeable.
It is the mounts that differ.
I run pipes from a 2008 96 ci 6 speed Fat Bob on my 2005 88 ci 5 speed Wide Glide, pipes were a straight bolt on I just had to make my own mount. Check the link under my sig pic.
If the pipe mounts bolts to the trans as mine does, as long as the trans is the same, i.e. 6 speed or 5 speed, the mounts should interchange as well, but you need to verify that. The bolt pattern on the 6 speed is slightly different than the 5 speed so the mounts are not interchangeable, without modification.
I have not personally verified this for the 103 motor.
It is the mounts that differ.
I run pipes from a 2008 96 ci 6 speed Fat Bob on my 2005 88 ci 5 speed Wide Glide, pipes were a straight bolt on I just had to make my own mount. Check the link under my sig pic.
If the pipe mounts bolts to the trans as mine does, as long as the trans is the same, i.e. 6 speed or 5 speed, the mounts should interchange as well, but you need to verify that. The bolt pattern on the 6 speed is slightly different than the 5 speed so the mounts are not interchangeable, without modification.
I have not personally verified this for the 103 motor.
Intermediate
Joined: Jul 2021
Posts: 49
Likes: 37
From: AK
I have seen some posts about people using different exhausts on different Dynas, but is it as easy as taking a Wide Glide or Fat Bob stock exhaust, for example and bolting it right on to a Street BOb? If it is, anyone do it or have pics? I have searched google images for an hour and searched for someone who has actually done it, but with no luck.
Last edited by Lars_Danner; Jul 15, 2024 at 12:16 AM.
Banned
Joined: Jun 2022
Posts: 673
Likes: 409
There are also a few pipes for older Dynas that will interfere with the oil filler location on 2006 up Dynas.
Transmission mounting brackets that use more than the two bottom screws will also need modification to fit between 05- and 06+ models.
Intermediate
Joined: Jul 2021
Posts: 49
Likes: 37
From: AK
A lot of 2006 up exhausts are not a good fit on older Dynas, since the rear header pipe will block the oil filler cap. On the photo above the filler is still accessible but a bit more difficult to fill, but for instance V&H short shots and big shots will make impossible to remove the cap.
There are also a few pipes for older Dynas that will interfere with the oil filler location on 2006 up Dynas.
Transmission mounting brackets that use more than the two bottom screws will also need modification to fit between 05- and 06+ models.
There are also a few pipes for older Dynas that will interfere with the oil filler location on 2006 up Dynas.
Transmission mounting brackets that use more than the two bottom screws will also need modification to fit between 05- and 06+ models.
Last edited by Lars_Danner; Jul 15, 2024 at 11:21 AM.
Banned
Joined: Jun 2022
Posts: 673
Likes: 409
When I got those pipes on I momentarily thought that the oil filter was blocked, so I was pretty relieved when I realized I could still use it. I had to slightly modify the original rear bracket which is marginal in strength given the extra weight of this system and the inability to use the mid mount.
Stellar HDF Member
Joined: Aug 2018
Posts: 2,373
Likes: 2,606
From: Milwaukee, WI
All the Dyna Exhausts will fit at the cylinder head. The reason you get no fitment is peg positions, Mid, fwd or floorboards.
They all require slight differences in mount points caused by the differences in foot controls and then by where the back pipe wraps.
Look at Swedishmeatball back pipe, it comes fwd and then joins the front pipe which is fine with Fwd controls, but would not clear my floorboards on a FLD, which also has saddlebags, so it’s got a 2:1 from factory.
They all require slight differences in mount points caused by the differences in foot controls and then by where the back pipe wraps.
Look at Swedishmeatball back pipe, it comes fwd and then joins the front pipe which is fine with Fwd controls, but would not clear my floorboards on a FLD, which also has saddlebags, so it’s got a 2:1 from factory.
Last edited by Paintslinger16; Jul 15, 2024 at 02:50 PM.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Advanced
Joined: Apr 2021
Posts: 85
Likes: 24
From: Michigan
All twin cam (and I believe evo) head pipes will bolt up to all twin cam heads. I have a 2-1 from a soft tail on my super glide for example. It works fine but I had to use an exhaust bracket from a Dyna. Checking the transmission fluid is also a bit more challenging now. You can make almost anything fit.
