Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

DIY or How Do I Remove a CAT?

Thread Tools
 
Search this Thread
 
Old Nov 22, 2013 | 09:33 AM
  #11  
WILDWOOD_1124's Avatar
WILDWOOD_1124
Outstanding HDF Member
Joined: Nov 2013
Posts: 2,618
Likes: 2
From: Indiana
Default

Originally Posted by northeimcustom
instead of cutting out the entire section, i just cut top and sides and pryed it open like a suitcase. and i did it on the bike..... horse a piece
I have never heard of anyone doing it with it on the bike! I'd like to know how you pulled that off?
 
Reply
Old Nov 22, 2013 | 10:14 AM
  #12  
WILDWOOD_1124's Avatar
WILDWOOD_1124
Outstanding HDF Member
Joined: Nov 2013
Posts: 2,618
Likes: 2
From: Indiana
Default

Wouldn't that require a rather long drill bit?
 
Reply
Old Nov 22, 2013 | 10:36 AM
  #13  
Ultra103's Avatar
Ultra103
Road Warrior
15 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2008
Posts: 1,942
Likes: 1,340
From: Arkansas
Default

I did mine on the bike. Remove main fuse, remove shield, cut window, remove cat material, weld, install shield.
 
Reply
Old Nov 22, 2013 | 01:07 PM
  #14  
Emonster6x's Avatar
Emonster6x
Cruiser
15 Year Member
Joined: Jul 2009
Posts: 219
Likes: 0
From: Orlando, FL
Default I bought one already done on e-bay!

I bought mine already done so "Murphy" wouldn't show up at my house!
 
Reply
Old Nov 22, 2013 | 01:47 PM
  #15  
FenderGuy53's Avatar
FenderGuy53
Outstanding HDF Member
Joined: Jun 2011
Posts: 2,023
Likes: 6
From: New Jersey
Default

Originally Posted by WILDWOOD_1124
Wouldn't that require a rather long drill bit?
YES, it would!
 
Reply
Old Nov 22, 2013 | 03:13 PM
  #16  
northeimcustom's Avatar
northeimcustom
Tourer
Joined: Jul 2013
Posts: 458
Likes: 1
From: WISCONSIN
Default

Originally Posted by WILDWOOD_1124
I have never heard of anyone doing it with it on the bike! I'd like to know how you pulled that off?
its just 2 hose clamps to remove the heat shield.....
 
Reply
Old Nov 22, 2013 | 03:28 PM
  #17  
WILDWOOD_1124's Avatar
WILDWOOD_1124
Outstanding HDF Member
Joined: Nov 2013
Posts: 2,618
Likes: 2
From: Indiana
Default

So remove the shield unhook the mufflers and start drilling out the CAT?
 
Reply
Old Nov 22, 2013 | 03:42 PM
  #18  
dulley's Avatar
dulley
Tourer
Joined: Apr 2010
Posts: 413
Likes: 1
From: canfield,ohio
Default

I removed mufflers bought masonry bits at harbor freight 18 inches long, drilled started the bike it all blew out , I did four of them under a hour each , dealer service manager bet me they weren,t clean , so when I bought the power dauls we cut them open , yes they were clean , free oil change for me lol
 
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 Nov 22, 2013 | 04:38 PM
  #19  
WILDWOOD_1124's Avatar
WILDWOOD_1124
Outstanding HDF Member
Joined: Nov 2013
Posts: 2,618
Likes: 2
From: Indiana
Default

Cool! what size of a drill did you use?
 
Reply
Old Nov 22, 2013 | 05:02 PM
  #20  
Diggman's Avatar
Diggman
Cruiser
Veteran: Air Force
10 Year Member
Joined: Sep 2013
Posts: 140
Likes: 3
From: Northern VA
Question

I hope no one takes this the wrong way, but what about the legal side of removing the cat? On a car or truck, that would be a federal offense.

With the gubmint getting into more and more of our lives, doesn't that worry you?

As a disclaimer - I removed the cat on my '83 S-10 back in the day (no state inspection in Tennessee) and enlarged the gas tank fill hole on my '77 Gremlin when unleaded gas became a requirement but leaded gas was still available. The Gremlin didn't come with a cat, so there was no worry of burning it up with the leaded gas.

Any way, just throwing it out there and putting on my asbestos shorts as I prepare for the replies.

Diggs
 
Reply



All times are GMT -5. The time now is 01:53 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