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:

D&D Fat Cat Exhaust

Thread Tools
 
Search this Thread
 
Old Jul 23, 2018 | 04:38 PM
  #1  
matt85's Avatar
matt85
Thread Starter
|
Advanced
Joined: May 2015
Posts: 94
Likes: 18
From: Long Beach
Default D&D Fat Cat Exhaust

I ordered a D&D Fat Cat exhaust to swap out my Supertrapp Supermeg exhaust because the Supertrapp was too restrictive for the big bore kit and ported heads on my bike, it wasn't able to unleash the full potential of the engine build.

Right off the bat, the high quality of the D&D system was very apparent. The welds on the pipes around the flange areas look nice, the chrome was done very nicely, the heat shields on the head pipe were pre-installed by D&D, and the fitment couldn't have been better. On D&D's website, they state that some minor adjustments will need to be made to the brake pedal on Low Riders since it has mid controls. I did not have to modify anything, they fit with no clearance issues at all.

The quality was a stark contrast to the quality of the Supertrapp. On that one, the heat shields did not line up evenly, the muffler clamp was a pile of garbage, and it just felt like an inferior product.

After I put the new pipes on, the sound was night and day different. It has a much throatier, American-sounding note.

Next step is getting the bike retuned.

Here's an audio clip though the video doesn't do it justice. I'm very happy with this pipe.

 
Reply
Old Jul 23, 2018 | 04:46 PM
  #2  
Reindeer's Avatar
Reindeer
Supporter
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2010
Posts: 4,069
Likes: 841
From: Suburban Mpls, Minnesota
Supporter
Default

I'm a big fan of the D&D. When I was shopping for pipes I came across a review on here of the FatCat by forum member WS6 Formula that sold me. Top notch quality, and it sounds awesome.
 
Reply
Old Jul 23, 2018 | 06:51 PM
  #3  
Lifestarts@40's Avatar
Lifestarts@40
Tourer
Joined: Jan 2016
Posts: 433
Likes: 68
From: Cape Coral, FL
Default

I've had mine for quite some time and still love it. My ride is a stage I 103, but the Fat Cat is really what woke it up in the torque dept.
 
Reply
Old Jul 24, 2018 | 07:11 PM
  #4  
Tall Timber's Avatar
Tall Timber
Road Warrior
Joined: Aug 2012
Posts: 1,363
Likes: 427
From: Yarra Ranges, Victoria, Australia
Default

Sounds great.
 
Reply
Old Jul 24, 2018 | 08:24 PM
  #5  
misfitJason's Avatar
misfitJason
Seasoned HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Dec 2010
Posts: 6,849
Likes: 1,389
From: Florida
Default

I've always thought about the d&d fat cat but one has never made its way into my dyna. I will disagree about the supertrapp though. I have one on my softail and the exhaust is great. Great finish (chrome) and excellent heat shield fit. Been on the bike for about ten years and it shows no signs of age.
 
Reply
Old Jul 24, 2018 | 08:34 PM
  #6  
Dynam1te's Avatar
Dynam1te
Road Warrior
Joined: Sep 2012
Posts: 1,252
Likes: 7
From: SLC, UT
Default

Been running a FatCat for 50,000 miles. I love it, other than the long heavy *** muffler. If you ever plan on going with 13.5" shocks, that muffler will hit the shock bolt, and get in the way of the rear axle. Making it a PITA do deal with from time to time.
 
Reply
Old Jul 26, 2018 | 01:20 PM
  #7  
Sambo62's Avatar
Sambo62
Cruiser
Joined: May 2017
Posts: 126
Likes: 19
From: Michigan
Default

Been running a FatCat for 50,000 miles. I love it, other than the long heavy *** muffler. If you ever plan on going with 13.5" shocks, that muffler will hit the shock bolt, and get in the way of the rear axle. Making it a PITA do deal with from time to time.
Guess that makes my exhaust decision for me. I had narrowed my choices down to two, Fat Cat or Bassani RR3 and quite frankly preferred the Fat Cat. However, I called them direct and they confirmed I would have issues with their system. Will give them the credit due for being totally transparent. Reckon it's the RR3 for tall shocks...
 
Reply
Old Jul 26, 2018 | 01:31 PM
  #8  
iaminsider's Avatar
iaminsider
Cruiser
Joined: Mar 2018
Posts: 156
Likes: 21
From: Farmington, MN
Default

I am running the RR3 with 13'' bagger air shocks. I love the RR3. Great sound and looks great! If you do not want the raw stainless pipes, there is an RR2 model that fits with taller shocks as well. You can get that one in black or chrome.
 
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 Jul 26, 2018 | 01:53 PM
  #9  
Dynam1te's Avatar
Dynam1te
Road Warrior
Joined: Sep 2012
Posts: 1,252
Likes: 7
From: SLC, UT
Default

Originally Posted by Sambo62
Guess that makes my exhaust decision for me. I had narrowed my choices down to two, Fat Cat or Bassani RR3 and quite frankly preferred the Fat Cat. However, I called them direct and they confirmed I would have issues with their system. Will give them the credit due for being totally transparent. Reckon it's the RR3 for tall shocks...
Exactly. Dont know that I would do it differently tho... In fact, I am in the process right now of fitting various 2.5 mufflers to the D&D head pipe to ditch that long one its comes with and solve my issues. Those stepped headers they make are great.
 
Reply
Old Jul 26, 2018 | 08:53 PM
  #10  
matt85's Avatar
matt85
Thread Starter
|
Advanced
Joined: May 2015
Posts: 94
Likes: 18
From: Long Beach
Default

I have 13.5" shocks and the lower shock bolt clears the muffler. The Supertrapp system included spacers for the muffler hanger/mount and I used those on the D&D muffler mount. D&D didn't include those. They allow the muffler to be pulled away a little bit and gives clearance. I'll take pictures later. I haven't cycled the suspension travel but will when I get home to be sure there is no interference with any bolts and exhaust.
 
Reply



All times are GMT -5. The time now is 06:30 PM.

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