Muffler Mod...
Thread Starter
|
Seasoned HDF Member
Joined: Feb 2010
Posts: 5,618
Likes: 5,233
From: Green Country
Muffler Mod...
So...did the Cycle Shack baffle swap on my '09 Bob. I was going to use stainless steel scouring pads to hold in the packing, but there just wasn't enough room in between the new baffles and the packing, so I just pulled out the stockers and replaced with the 'Shacks.
I used the 1 3/4" exhaust pipe spacer, cut it off flush with the inlet end of the baffle, then seated it with a rubber mallet in the muffler can. Something odd, in that the baffle went into the bottom (front) muffler about 3/4 inch or so farther than the other. The back muffler I was able to secure the baffle using the existing rivet holes. Unfortunately, I had to drill a hole in the front muffler...about a half-inch farther in enough to catch the outside edge of the baffle. I only used one bolt on the front, and it's on the bottom and pretty much outta' sight. It'll work until Santa brings the new pipes.
Sound is good, not obnoxiously loud. Just a nice mellow rumble to alert tha cage drivers next to me in traffic...which was my main concern (and that feeling of comfort for mama when she hears me comin' down the road).
Not a bad job to undertake...took about three hours by the time I cleaned up my mess and took her out for a test run (I'd say a two beer job)...right about bedtime for the neighborhood!
Got a little carbon staining on the underneath of my back muffler...never noticed that before. Don't know what that ****'s about...
I used the 1 3/4" exhaust pipe spacer, cut it off flush with the inlet end of the baffle, then seated it with a rubber mallet in the muffler can. Something odd, in that the baffle went into the bottom (front) muffler about 3/4 inch or so farther than the other. The back muffler I was able to secure the baffle using the existing rivet holes. Unfortunately, I had to drill a hole in the front muffler...about a half-inch farther in enough to catch the outside edge of the baffle. I only used one bolt on the front, and it's on the bottom and pretty much outta' sight. It'll work until Santa brings the new pipes.
Sound is good, not obnoxiously loud. Just a nice mellow rumble to alert tha cage drivers next to me in traffic...which was my main concern (and that feeling of comfort for mama when she hears me comin' down the road).
Not a bad job to undertake...took about three hours by the time I cleaned up my mess and took her out for a test run (I'd say a two beer job)...right about bedtime for the neighborhood!
Got a little carbon staining on the underneath of my back muffler...never noticed that before. Don't know what that ****'s about...
Thread Starter
|
Seasoned HDF Member
Joined: Feb 2010
Posts: 5,618
Likes: 5,233
From: Green Country
Here's the pics...
The first one is obvious. The second is the fitment of the CS baffle in the rear muffler can. The third is the fitment in the front muffler can. The last picture is of the carbon staining on the belly of the rear can.
Sorry, no sound clip capability.
Sorry, no sound clip capability.
Road Captain
Joined: Jul 2009
Posts: 718
Likes: 1
From: Downtown Chicago
The "1 3/4" exhaust pipe spacer". Can you explain a bit more. I was hoping to get this same project done this weekend with my dad but I don't really get what I need. Maybe it's because I haven't seen the inside of the muffs yet and don't get the part needed. Any pictures (probably too late with it already being IN THE BIKE)?
Road Captain
Joined: Jul 2009
Posts: 718
Likes: 1
From: Downtown Chicago
Tons of info here: https://www.hdforums.com/forum/dyna-...ffler-mod.html
Cycle Shack replacement baffles. The Drag Specialties part number is 1861-0468. Price is $38.95.
Cycle Shack replacement baffles. The Drag Specialties part number is 1861-0468. Price is $38.95.
Trending Topics
Road Warrior
Joined: Dec 2008
Posts: 1,530
Likes: 1
From: Upstate, SC
Just because the cycle shack baffle will seat deeper than the rivet holes in the muffler can doesn't mean you have to seat it that deep. It's a little longer than the stock baffle so as long as you seat it as deep as stock you can be sure it's over the internal head pipe inside the muffler. You should have lined it up with the holes in the can, drilled, and secured it with screws.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
Jason Momoa Is Turning Classic Harleys Into PHEVs
Verdad Gallardo
Harley-Davidson Fat Boy Becomes a Dark, Decepticon-Inspired Custom
Verdad Gallardo
6 Weirdest Harley-Davidsons Ever Sold to the Public
Verdad Gallardo
7 Times Harley-Davidson Chucked Tradition Out the Window
Verdad Gallardo
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
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
Thread
Thread Starter
Forum
Replies
Last Post
