Dyna Glide Models Super Glide, Super Glide Sport, Super Glide Custom, Dyna Glide Convertible, Super Glide T-Sport, Dyna Glide Police, Dyna Switchback, Low Rider, Street Bob, Fat Bob and Wide Glide.
Sponsored by:
Sponsored by:

Dyna's gotten louder

Thread Tools
 
Search this Thread
 
Old Sep 29, 2018 | 06:30 PM
  #1  
rjo3491's Avatar
rjo3491
Thread Starter
|
Road Master
Joined: Aug 2014
Posts: 1,132
Likes: 150
From: Michigan
Default Dyna's gotten louder

Hi all, here's a weird one for you. My 2008 96 CI has gotten noticeable louder. All additional noise is coming out of the pipes (valves sound fine etc). I've checked the bolts on the cylinder flanges and made sure both mufflers are still in place ( I have V&H Straight Shots with the, "quiet baffles"). I'm also getting more gurgle and occasional popping which is what led me to think I had an exhaust leak - the flange bolts were the first thing I checked. Add to this, I think it's running a bit rough, I seem to have normal power, but I'm picking up vibration with my feet that I haven't noticed before (not the typical Dyna shake).

Has anyone ever run into this? Do exhaust pipes crack? Thanks!!
 
Reply
Old Sep 29, 2018 | 06:55 PM
  #2  
TwiZted Biker's Avatar
TwiZted Biker
Club Member
15 Year Member
Loved
Community Favorite
Top Answer: 10
Joined: Mar 2009
Posts: 66,125
Likes: 51,446
From: Niles Canyon Ca.
Default

Start looking for something loose with the drivetrain, from motor mounts to the rear wheel. Intake area also.
 
Reply
Old Sep 29, 2018 | 09:46 PM
  #3  
AFDynaRider's Avatar
AFDynaRider
Tourer
Joined: Feb 2013
Posts: 265
Likes: 14
From: Abilene TX
Default

You may need to re-pack the baffles. Over time the fiberglass blows out and the pipes get louder. I have V&H short shots with the quiet baffles and they did the same thing. They progressively got louder until there was no fiberglass left inside.

I wrapped the baffles with some fiberglass fabric and it tamed them back down a bit. Not as quiet as when the baffles were new but it deepened the tone. I will probably add a little more fiberglass to quiet them a little more at some point.
 
Reply
Old Sep 30, 2018 | 12:37 AM
  #4  
Nickd2689's Avatar
Nickd2689
Stellar HDF Member
Joined: Feb 2016
Posts: 2,066
Likes: 259
From: Northstreet, michigan
Default

THats weird cause I’ve noticed my s&s fat cat (performance/loud baffle) has gotten quieter. No longer blows my ear drums out.

Anyway about your problem, I would agree with affdynarider and suspect the baffles if you’re 100% POSITIVE there’s no exhaust leak because an exhaust leak would be my first thought.
 
Reply
Old Sep 30, 2018 | 07:06 AM
  #5  
rjo3491's Avatar
rjo3491
Thread Starter
|
Road Master
Joined: Aug 2014
Posts: 1,132
Likes: 150
From: Michigan
Default

Originally Posted by AFDynaRider
You may need to re-pack the baffles. Over time the fiberglass blows out and the pipes get louder. I have V&H short shots with the quiet baffles and they did the same thing. They progressively got louder until there was no fiberglass left inside.

I wrapped the baffles with some fiberglass fabric and it tamed them back down a bit. Not as quiet as when the baffles were new but it deepened the tone. I will probably add a little more fiberglass to quiet them a little more at some point.
This is something I had considered. I may go with those simple inserts that so many others like (can't recall the name right now).
 
Reply
Old Sep 30, 2018 | 07:45 AM
  #6  
Boostedboxer04's Avatar
Boostedboxer04
Road Captain
Joined: May 2016
Posts: 506
Likes: 82
From: Southern NH
Default

Originally Posted by rjo3491
This is something I had considered. I may go with those simple inserts that so many others like (can't recall the name right now).
Thunder Torque inserts from DK Customs
 
Reply
Old Sep 30, 2018 | 10:48 AM
  #7  
rjo3491's Avatar
rjo3491
Thread Starter
|
Road Master
Joined: Aug 2014
Posts: 1,132
Likes: 150
From: Michigan
Default

....thanks boostedboxer!
 
Reply
Old Sep 30, 2018 | 05:54 PM
  #8  
Boostedboxer04's Avatar
Boostedboxer04
Road Captain
Joined: May 2016
Posts: 506
Likes: 82
From: Southern NH
Default

Originally Posted by rjo3491
....thanks boostedboxer!
Glad I could help🤘
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Times Harley-Davidson Chucked Tradition Out the Window

 Verdad Gallardo
story-1

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-2

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-4

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-5

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-6

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-7

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-8

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-9

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
Old Oct 2, 2018 | 09:15 PM
  #9  
TUCCI's Avatar
TUCCI
Extreme HDF Member
Joined: Jun 2011
Posts: 10,216
Likes: 224
From: Glendale AZ
Default

Originally Posted by rjo3491
Hi all, here's a weird one for you. My 2008 96 CI has gotten noticeable louder. All additional noise is coming out of the pipes (valves sound fine etc). I've checked the bolts on the cylinder flanges and made sure both mufflers are still in place ( I have V&H Straight Shots with the, "quiet baffles"). I'm also getting more gurgle and occasional popping which is what led me to think I had an exhaust leak - the flange bolts were the first thing I checked. Add to this, I think it's running a bit rough, I seem to have normal power, but I'm picking up vibration with my feet that I haven't noticed before (not the typical Dyna shake).

Has anyone ever run into this? Do exhaust pipes crack? Thanks!!
I've got the same exhaust with the QBs and they sound the same so far. I would pull the QBs and make sure the fiber glass isn't completely gone, it's not uncommon for that to happen.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ShadowforNow
General Harley Davidson Chat
11
Feb 25, 2019 01:08 PM
Gibler77
Softail Models
7
Jun 20, 2015 12:17 PM
Jameson
Softail Models
7
Oct 15, 2014 08:26 AM
Voony
Sportster Models
29
Feb 1, 2012 02:27 AM
frist44
Softail Models
11
May 8, 2010 11:12 AM




All times are GMT -5. The time now is 03:49 AM.

story-0
7 Times Harley-Davidson Chucked Tradition Out the Window

Slideshow: Harley-Davidson built its reputation on nostalgia, but every so often, the company took a hard left turn into the future.

By Verdad Gallardo | 2026-05-20 11:18:19


VIEW MORE
story-1
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-2
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-3
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-4
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-5
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-6
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-7
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-8
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-9
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE