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:

True duels or 2 into 1

Thread Tools
 
Search this Thread
 
Old Apr 17, 2008 | 09:09 AM
  #11  
CREEPSHOW's Avatar
CREEPSHOW
Road Warrior
Joined: Sep 2007
Posts: 1,827
Likes: 34
From: Iowa
Default RE: True duels or 2 into 1

I am running a homemade 2-1 with a very, very,modified muffler. I love the thunderheader. Some day I will be able to afford a thunderheader, but for now I am looking forone thunderheaderslip on. My friend just installed a Fatcat on his 95" and it sounds wicked. It has become a very close second choice now You can always install a 2-1 and a ghost pipe if you prefer the looks of duals. That way you have your cake and eat it too. I prefer the 2-1 look..
 
Reply
Old Apr 17, 2008 | 09:14 AM
  #12  
2008FLHP's Avatar
2008FLHP
Outstanding HDF Member
Joined: Sep 2007
Posts: 2,782
Likes: 7
From: NC
Default RE: True duels or 2 into 1

2-1 for me...it all looks the same when i'm riding!
 
Reply
Old Apr 17, 2008 | 09:34 AM
  #13  
PhilM's Avatar
PhilM
Ultimate HDF Member
Joined: Feb 2006
Posts: 5,939
Likes: 3
From: TX
Default RE: True duels or 2 into 1

2-1 for me too....

Fatcat is hard to beat, but the SuperTrapp is good too. ThunderHeaders sound good.

The looks of two bigazz mufflers poken out the back of a nice Bagger just looks silly to me. [8D]
 
Reply
Old Apr 17, 2008 | 09:38 AM
  #14  
lkr0's Avatar
lkr0
Elite HDF Member
Joined: Nov 2006
Posts: 3,647
Likes: 11
From: Stockbridge, GA (Atlanta)
Default RE: True duels or 2 into 1

you CALI boys would not be caught dead without Thunderheaders -- I like them

ORIGINAL: scootertramp

I just pulled my Thunderheader off my hot rod evo to do a little welding and powdercoating on it. I put my dual shotgun fishtails onher till I'm done. It was like putting a restrictor plate in the carb. I almost don't want to ride it. Took my ol' lady for a spin on it a couple of days ago and she wanted to know what was wrong with her. You can't beat a 2:1 for performance. I've got a 2:1 Rinehart on my Road Glide. Wish now I had gone with a ThunderHeader. I've run Thunderheaders on Shovels and Evos. Best performing pipe I've ever run! If I ever get another 7 bills, there'll be one on my Road Glide Kelsey! All the rich crack dealers down in Oakland are running the true dual Thunderheaders on their top of the line, wheelie poppin dressers and they sound awesome! I still prefer 2:1 but those dual THeaders are something to behold!
 
Reply
Old Apr 17, 2008 | 09:49 AM
  #15  
sweet07's Avatar
sweet07
Outstanding HDF Member
Joined: Jul 2007
Posts: 2,011
Likes: 0
From: Anchorage, AK
Default RE: True duels or 2 into 1

ORIGINAL: CREEPSHOW

I am running a homemade 2-1 with a very, very,modified muffler. I love the thunderheader. Some day I will be able to afford a thunderheader, but for now I am looking forone thunderheaderslip on. My friend just installed a Fatcat on his 95" and it sounds wicked. It has become a very close second choice now You can always install a 2-1 and a ghost pipe if you prefer the looks of duals. That way you have your cake and eat it too. I prefer the 2-1 look..
Good point. That 2n1 do sound nice!
 
Reply
Old Apr 17, 2008 | 12:39 PM
  #16  
a911scanner's Avatar
a911scanner
Cruiser
Joined: Mar 2008
Posts: 120
Likes: 0
From:
Default RE: True duels or 2 into 1

I'm still learnin' here, so don't go on a rip fest if this seems like a dumb statement (question)...

I'm still in the "listen to other peoples pipes" mode to decide what to do. If I decide to do 2 into 1or True duals,I would need to have a fuel management system vs. doing slip-ons where I wouldn't need a box... is this a correct statement?


MM
 
Reply
Old Apr 17, 2008 | 12:47 PM
  #17  
OregonRoadKing's Avatar
OregonRoadKing
Tourer
Joined: May 2007
Posts: 499
Likes: 0
From:
Default RE: True duels or 2 into 1

I've read that a change in exhaust does not require remapping or a fuel management system, though that is usually the next step that most people take along with the new A/C. If you change the A/C, that requires remapping or the fms.

My mechanics folks all agreed that the 2-1 gave better performance than a 2-2. They couldn't agree on which one. 2-2's look nice, so its basically weighing which way you want to go. A small loss in performance can be lived with if you still have plenty of power to get into trouble and like the looks and sound.
 
Reply
Old Apr 17, 2008 | 12:47 PM
  #18  
SCRider's Avatar
SCRider
Cruiser
Joined: Jan 2008
Posts: 237
Likes: 0
From: Newport Beach, CA
Default RE: True duels or 2 into 1

Its is simply looks vs. performance. 2 into 1's look great on one side. But I think that when a 2 into 1 bagger is viewed from the rear or the left side the absence of the left pipe makes the bike look funny, sorry. The offset to that is the increased performance. If you really want the increased performance of the 2 into 1 system, I'd get the 2 into 1 thunderheader with the false left side exhaust for balance.
 
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 Apr 17, 2008 | 12:53 PM
  #19  
CREEPSHOW's Avatar
CREEPSHOW
Road Warrior
Joined: Sep 2007
Posts: 1,827
Likes: 34
From: Iowa
Default RE: True duels or 2 into 1

ORIGINAL: a911scanner

I'm still learnin' here, so don't go on a rip fest if this seems like a dumb statement (question)...

I'm still in the "listen to other peoples pipes" mode to decide what to do. If I decide to do 2 into 1or True duals,I would need to have a fuel management system vs. doing slip-ons where I wouldn't need a box... is this a correct statement?


MM
No!.... A fuel management is needed either way. Some people say it isn't needed, there's run fine, but there is a difference between running fine and running right! Slip on only, just don't show the effects/signs by it self as much as with an a/c but it IS running leaner. They are lean from the factory, this doesn't help any.
 
Reply
Old Apr 17, 2008 | 01:03 PM
  #20  
OregonRoadKing's Avatar
OregonRoadKing
Tourer
Joined: May 2007
Posts: 499
Likes: 0
From:
Default RE: True duels or 2 into 1

You're probably right. It's safer to be sure. Do the whole stage 1 and get it dyno'd so everything is tuned right. It's too important to try and save a couple of hundred buck and find out you made the wrong choice. You'll be happier in the long run doing the whole stage 1 at the same time.
 
Reply



All times are GMT -5. The time now is 01:52 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