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:

Catalytic Converter

Thread Tools
 
Search this Thread
 
Old Aug 4, 2010 | 06:25 PM
  #1  
tstammer's Avatar
tstammer
Thread Starter
|
Advanced
Joined: Jul 2009
Posts: 55
Likes: 0
From: Feasterville PA.
Default Catalytic Converter

Do I need the Catalytic Converter on my 2010 Road King? The bike sounds terrible due to the converter.
 
Reply
Old Aug 4, 2010 | 06:44 PM
  #2  
WolfDog's Avatar
WolfDog
Road Master
Joined: Aug 2005
Posts: 1,098
Likes: 5
From: North Texas
Default

Yea I bet, its also running Hotter than Hell, then your stock pipes will blue and yellow on the tails, then you will pay the Harley Tax. If I remember my ride back from Arkansas on Sunday when it was really HOT, the wife had her right leg up on the crash bar, it sounded like it had a corn cob up its pipe.... The cat is a POS.

I was trying to have faith in my stock Limited but gave up, its got a long list of goodies from Fuel Moto on the way to tune it, and flow air and exhaust.
Jamie swears it will be a whole different bike once I change it all out.

You dont need the catilitic converter, some guys have bore them out with a concrete core cutter, cut open the header and removed it and welded the header back together, then claimed it was good but later on down the road they bit the bullit and installed a new header, mufflers, air-cleaners and PCV tune to the ECM.It your call, but in the long run I feel we must all pay the TAX if we want these new EPA restricted bikes to run like anything from 2008 and back.

Just Saying.........

Ride on.....
 
Reply
Old Aug 4, 2010 | 06:53 PM
  #3  
TOMCENTRAL's Avatar
TOMCENTRAL
Road Captain
20 Year Member
Photogenic
Joined: Nov 2005
Posts: 595
Likes: 0
From: SUNNY PHOENIX
Default No Cat here

Originally Posted by tstammer
Do I need the Catalytic Converter on my 2010 Road King? The bike sounds terrible due to the converter.
Yes,you can eliminate the cat by going with a different set of pipes.I run Carriage Works True duals W/Supertrapp Fatshots on my 2010 Ultra Limited.I saved my stock cat/headpipe just in case.................Plus the headpipe w/cat,Im told is very pricey($1000??).
 
Reply
Old Aug 4, 2010 | 07:23 PM
  #4  
Ronp42's Avatar
Ronp42
Account Retired
Joined: Oct 2009
Posts: 3,245
Likes: 12
From: Here
Default

No you don't have to have the Cat. in there for it to run good, but if you take it out Al Gore might come down and whip your a$$. He's probably in a bad mood since Tipper kicked him to the curb...LOL
 
Reply
Old Aug 4, 2010 | 10:55 PM
  #5  
one-up's Avatar
one-up
Stellar HDF Member
15 Year Member
Liked
Loved
Community Favorite
Joined: Jan 2010
Posts: 2,022
Likes: 60
From: Greer, South Carolina
Default

I have a 2010 Road King (for sale) and put a $600 pair of Rineharts on it only to have sound like a sewing machine because of that cat. conv. (it acts just like another muffler). If I were to keep it I would put true duals on it.

Just bought a 2010 Street Glide and the first thing I did was put a V&H 2-1 Pro Pipe on it. That catalytic converter had to go!!
 
Reply
Old Aug 4, 2010 | 10:59 PM
  #6  
RumRunner's Avatar
RumRunner
Elite HDF Member
Joined: Apr 2010
Posts: 3,733
Likes: 9
From: MA
Default

Originally Posted by one-up
I have a 2010 Road King (for sale) and put a $600 pair of Rineharts on it only to have sound like a sewing machine because of that cat. conv.
Now thats the way to advertise your bike that is for sale
 
Reply
Old Aug 4, 2010 | 11:03 PM
  #7  
Texas Fat Boy's Avatar
Texas Fat Boy
Extreme HDF Member
Joined: Dec 2006
Posts: 10,045
Likes: 36
From: ST. Louis
Default

Here's what one looks like cut open. It's hard to beleave they can even run.
 
Attached Thumbnails Catalytic Converter-cat-on-a-2010.jpg  
Reply
Old Aug 4, 2010 | 11:06 PM
  #8  
TOK DADDY's Avatar
TOK DADDY
Cruiser
Joined: Jul 2010
Posts: 233
Likes: 1
From: Arizona
Default

That is an amazing pic - cannot believe that crap is in my pipe!!!
 
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 Aug 4, 2010 | 11:13 PM
  #9  
Then Came Bronson's Avatar
Then Came Bronson
Grand HDF Member
Veteran: Marine Corps
15 Year Member
Liked
Community Favorite
Joined: Oct 2009
Posts: 3,919
Likes: 3,721
From: Hill Country, TX
Default

Originally Posted by Texas Fat Boy
Here's what one looks like cut open. It's hard to beleave they can even run.
Damn! The pipe looks like it's filled with concrete. So glad I changed out the entire exhaust system.
 
Reply
Old Aug 4, 2010 | 11:18 PM
  #10  
g money's Avatar
g money
Account Retired
Joined: Feb 2006
Posts: 2,448
Likes: 8
From: On Parole - Grays Creek, North Carolina
Default

Hell no you don't need that cat!!!! Thats what I thought back in 76 when I bought my first corvette. Who would've thought that Pennsylvania would start emmissions testing for annual inspections shortly thereafter??? Don't worry about it, drill it out, throw it away, change pipes, no problem. They'll never do emmissions tests as part of the inspections on motorcyeles. Hey, thats what they told me. Don't worry about it. It will never happen. I just put cat converters back on my jeep wrangler today, needed them to pass inspection= $927.00. Don't worry about them, you'll never need them. They will never smog check bikes! Yeah right!!!!!!!

I would just run straight pipes. Don't worry about, they will never ticket you for loud pipes, never. Don't worry about it. Cops will never ticket you for loud pipes, anywhere in the U.S.
Gary D.
 

Last edited by g money; Aug 5, 2010 at 12:05 AM.
Reply



All times are GMT -5. The time now is 07:02 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