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Old 01-29-2010, 04:04 PM   #1
DirtyDeeds
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Default Sportster: Dual exhaust *FAB*

Well, Ive only seen one other sportster with dual exhaust, but it wasnt a TRUE dual exhaust. Maybe theyre everywhere, but I havent seen them.
Anyways, I wanted to see what it would look like so I spent two nights after work fabbing up this crossover pipe. I put a U shaped dip in the pipe to get it, and the heat, away from my belt. I also made the pipe come out the other side as close to the case as possible to make it appear it came from under the bike (?) It looked better than just having it pop out in the middle of the space.

I used the rear muffler support bracket mount on the frame to mount the pipe. I welded a support arm to the pipe for the right pipe. The left pipe was so solid, I didnt fab in a support for that, but I will later just for piece of mind that the muffler wont go flying off one day!

So, the only thing I noticed was that there is limited room for my boot when grabbing for the kickstand when its up.

I also noticed that it was nice to have the noisy pipes split equally to each ear, rather than just ringing my right ear. This will be way cooler on long trips. Another cool thing is that cars will "hear" me qually, no matter what lane Im in.

So all in all it was a cool little project, didnt cost me anything, and I did it in a way that I can easily go back to the original set up in 15 minutes.
Let me know what you think!
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Old 01-29-2010, 04:47 PM   #2
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Default Re: Sportster: True dual exhaust *FAB*

now all you need is dual lic plates!
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Old 01-29-2010, 05:42 PM   #3
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Default Re: Sportster: True dual exhaust *FAB*

It's not easy building a complicated exhaust, good work there mate.
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Old 01-29-2010, 06:59 PM   #4
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Default Re: Sportster: True dual exhaust *FAB*

Why not just make a copy of the pipes Harley fitted as standard to the XLCR in 1977. Oh yes indeedy, not only did the factory beat you to it, they did it more than 30 years ago.
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Old 01-29-2010, 08:35 PM   #5
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Default Re: Sportster: True dual exhaust *FAB*

"A true dual exhaust system has two complete sets of pipes, catalytic converters, mufflers and tailpipes running from the engine."

OK...how is this "true dual" thing here different from the dual exhaust most twins run?
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Old 01-29-2010, 09:38 PM   #6
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Default Re: Sportster: True dual exhaust *FAB*

Quote:
Originally Posted by Neo Dutch View Post
Why not just make a copy of the pipes Harley fitted as standard to the XLCR in 1977. Oh yes indeedy, not only did the factory beat you to it, they did it more than 30 years ago.
oh snap....

Quote:
Originally Posted by Dr. Benway View Post
"A true dual exhaust system has two complete sets of pipes, catalytic converters, mufflers and tailpipes running from the engine."

OK...how is this "true dual" thing here different from the dual exhaust most twins run?
I was wondering the same thing... I can respect the work effort, and the diversity, but damn, looks like a lot of work just to have an exhaust tip on the other side. and from a distant side shot, it looks like it's still running factory exhaust, till you look at the other side...

-A.
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Old 01-30-2010, 02:14 AM   #7
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Default Re: Sportster: True dual exhaust *FAB*

Quote:
Originally Posted by Neo Dutch View Post
Why not just make a copy of the pipes Harley fitted as standard to the XLCR in 1977. Oh yes indeedy, not only did the factory beat you to it, they did it more than 30 years ago.
Well, I wasnt aware of that bikes exhaust until you mentioned it. I took a look at it and its really impressive. Now, that exact system wont work with my forward controls, but a lot of ideas can be used for maybe my next build.
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Old 01-30-2010, 02:22 AM   #8
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Default Re: Sportster: True dual exhaust *FAB*

Quote:
Originally Posted by Dr. Benway View Post
"A true dual exhaust system has two complete sets of pipes, catalytic converters, mufflers and tailpipes running from the engine."

OK...how is this "true dual" thing here different from the dual exhaust most twins run?
Well, heres what I mean by true dual, and how I use the term. Almost every V twin has true dual exhaust unless theyre running a 2 into 1 system. However, most harleys run both pipes on the right side. Only a few run a pipe on each side. These are termed as "true dual" by websites, catalogs and dealers. Some systems offer the look, but the left pipe is a dumby pipe or theres a crossover pipe from one of the right pipes, creating 3 pipes.

So this system has no dumby pipes, no branch off from a right side pipe and has a pipe on each side of the bike. I hear this system to be called a true dual. And, other than the XLCR in '77, sportsters dont offer a true dual, or "a pipe on each side".
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Old 01-30-2010, 02:41 AM   #9
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Default Re: Sportster: True dual exhaust *FAB*

Your alright Mr Deeds, normally a noob would have got a heap of sand in their vaginas and sulked off to some other site by now.
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Old 01-30-2010, 03:03 AM   #10
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Default Re: Sportster: True dual exhaust *FAB*

Quote:
Originally Posted by 66triumph View Post
oh snap....



I was wondering the same thing... I can respect the work effort, and the diversity, but damn, looks like a lot of work just to have an exhaust tip on the other side. and from a distant side shot, it looks like it's still running factory exhaust, till you look at the other side...

-A.
The reason I did it was to have the tip on the other side. I like the look and its different and symetrical and for the other reasons I mentioned at the opening of the thread.
I will 100% agree with you that it looks like the factory exhaust until you look at the other side. The reason I didnt hack into the header portion is cause I wanted it to be able to swap back to original set up if I didnt like it.
Hmmmmm, however, I think if I wrapped the pipes with black header wrap, it would hide the pipe, and only show the chrome muffler tips. And then, if I STILL dont like it, Ill just take the wrap off and put it back.
Sounds like a plan!
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Old 01-30-2010, 05:06 AM   #11
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Default Re: Sportster: True dual exhaust *FAB*

So.... Im at work and it only has a shitty paint program on this computer, but you kinda get the idea of using black header wrap. I think itll do the trick
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Old 01-30-2010, 05:59 AM   #12
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Default Re: Sportster: True dual exhaust *FAB*

deeds, why cover up all of the work youve done? f' that, it looks clean, and is getting the job done like YOU want. it'll be intersting to see what outher mods you do to it.
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Old 01-30-2010, 06:16 AM   #13
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Default Re: Sportster: True dual exhaust *FAB*

Quote:
Originally Posted by DirtyDeeds View Post
The reason I did it was to have the tip on the other side. I like the look and its different and symetrical and for the other reasons I mentioned at the opening of the thread.
I will 100% agree with you that it looks like the factory exhaust until you look at the other side. The reason I didnt hack into the header portion is cause I wanted it to be able to swap back to original set up if I didnt like it.
Hmmmmm, however, I think if I wrapped the pipes with black header wrap, it would hide the pipe, and only show the chrome muffler tips. And then, if I STILL dont like it, Ill just take the wrap off and put it back.
Sounds like a plan!
If you had chosen to turn the rear pipe under the frame, and snake it around, instead of the front one, you'd have come closer to having equal length pipes. As others have pointed out, when I first looked at the right side pictures, I thought you still had both pipes exiting on the right.

You picked a very strange use of words for your post. What would constitute duals that were not "true"?

I've seen plenty of HD's, including sporties, with left and right pipes, and I don't mean the XLCR factory one's.
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Old 01-30-2010, 06:59 AM   #14
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Default Re: Sportster: True dual exhaust *FAB*

Quote:
Originally Posted by J_F_Byrd View Post
If you had chosen to turn the rear pipe under the frame, and snake it around, instead of the front one, you'd have come closer to having equal length pipes. As others have pointed out, when I first looked at the right side pictures, I thought you still had both pipes exiting on the right.

You picked a very strange use of words for your post. What would constitute duals that were not "true"?

I've seen plenty of HD's, including sporties, with left and right pipes, and I don't mean the XLCR factory one's.
Written in response to this question earlier:

"Well, heres what I mean by true dual, and how I use the term. Almost every V twin has true dual exhaust unless theyre running a 2 into 1 system. However, most harleys run both pipes on the right side. Only a few run a pipe on each side. These are termed as "true dual" by websites, catalogs and dealers. Some systems offer the look, but the left pipe is a dumby pipe or theres a crossover pipe from one of the right pipes, creating 3 pipes.

So this system has no dumby pipes, no branch off from a right side pipe and has a pipe on each side of the bike. I hear this system to be called a true dual. And, other than the XLCR in '77, sportsters dont offer a true dual, or "a pipe on each side"." End.

I thought of running the rear pipe to the other side, but that would mean cutting into the header and reshaping the bends. I wanted to do this in a way that I could reverse it if I didnt like it, without having to re-weld the header back together. You know?
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Old 01-30-2010, 07:06 AM   #15
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Default Re: Sportster: True dual exhaust *FAB*

true "symmetrical" exhaust, imo
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Old 01-30-2010, 08:00 AM   #16
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Default Re: Sportster: True dual exhaust *FAB*

I like the look and understand the effort. It's your bike and just doing it yourself is the reward a lot of times. Keep on keepin on man!!
I dig it.
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Old 01-30-2010, 09:51 AM   #17
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Default Re: Sportster: True dual exhaust *FAB*

If it works for you, then thats all that matters. I "think" the term true dual exhaust mostly refers to the catalogs selling the pipes that have a pipe on each side of the bike , where the carb side pipe comes off the front jug and exits on the carb side, and the primary side pipe comes off the rear jug and exits on the primary side.

Then the cross-over exhuast is the stock type where there is a pipe on each side of the bike, but there is a pipe that dumps the front exhuast into the rear exhaust then crosses over to the primary side for a pipe on each side but yet they are not "true duals" because they are actually conected.

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Old 01-30-2010, 09:53 AM   #18
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Default Re: Sportster: True dual exhaust *FAB*

true dual means no connection from bank to bank...no crossover, no x-pipe, no connection between the pipes at all other than the vehicle itself.

as for that look, woulda been easier to just ride a trump. don't worry, when I see a brit with two pipes on the same side I think "just ride a Harley."
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Old 01-31-2010, 04:03 AM   #19
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Default Re: Sportster: True dual exhaust *FAB*

Quote:
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true "symmetrical" exhaust, imo
That is a MUCH better decription! I like it!
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Old 01-31-2010, 04:12 AM   #20
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Default Re: Sportster: True dual exhaust *FAB*

Fatboy: Thanks for the kind words!
Sixball: I believe youre right in those descriptions, thats how I would discribe it as well.
Ska: Your description of true dual hits it on the head. As far as giving up my harley for a trumpet just so I could have symmetrical exhaust.... I think Ill stick with my set up instead! haha! I love brit bikes, but I wont ride one just so I can enjoy how it was built stock. I customize stuff too much and Id probably put both exhaust on one side like a harley just to mess with it, haha!
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