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xs650 > > Motorcycle Systems > > Exhaust > > Two into One |
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wally Full Member
Joined: Apr 04, 2007 Posts: 538 Location: Sydney Australia
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Posted: March 8, 2008, 1:44 am Post subject: Two into One |
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Whats the benefit of a free flowing two into one system
over standard exhaust system
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Cooltouch Full Member
Joined: Jan 07, 2007 Posts: 568 Location: Houston, Texas
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Posted: March 8, 2008, 1:51 am Post subject: Re: Two into One |
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Supposedly better scavenging? Tell you what, though, when I bought my XS, it had a set of Mac 2-into-1s on it. Been too cheap to replace them with something else. I find the Mac's exhaust note annoying. A good set of 2-into-2s sounds much better.
Best,
ichael
_________________ Triple Tuning Forks Rule!
'81SH, '80SG, '78E, '77D |
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dwyatt Full Member
Joined: Dec 21, 2006 Posts: 186 Location: Houston/Malongo, Angola
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Posted: March 8, 2008, 2:45 am Post subject: Re: Two into One |
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Michael,
Any interest in selling yor MAC 2-1 to help fund a new exhaust?
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dwyatt Full Member
Joined: Dec 21, 2006 Posts: 186 Location: Houston/Malongo, Angola
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Posted: March 8, 2008, 2:46 am Post subject: Re: Two into One |
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Michael,
Any interest in selling yor MAC 2-1 to help fund a new exhaust?
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dwyatt Full Member
Joined: Dec 21, 2006 Posts: 186 Location: Houston/Malongo, Angola
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Posted: March 8, 2008, 2:47 am Post subject: Re: Two into One |
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Michael,
Any interest in selling yor MAC 2-1 to help fund a new exhaust?
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Cooltouch Full Member
Joined: Jan 07, 2007 Posts: 568 Location: Houston, Texas
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Posted: March 8, 2008, 2:21 pm Post subject: Re: Two into One |
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Yeah, there's some interest, but I dunno if you'd want it or not.
The header pipes are pretty blue, and the muffler has never really fit right. Dunno why not. Come to think of it, I have a set on another bike I could probably take off. The muffler fits better on it. Haven't looked at it lately though. Condition is probably roughly the same.
Best,
ichael
_________________ Triple Tuning Forks Rule!
'81SH, '80SG, '78E, '77D |
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grizld1 Full Member
Joined: Jun 20, 2005 Posts: 594 Location: Carbondale, IL
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Posted: March 8, 2008, 6:30 pm Post subject: Re: Two into One |
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Wally, one of the advantages of 2-1 systems is that you won't be tempted to corner as hard in right-handers; the left-cylinder header will ground between the lower bend and the collector. Haven't seen one yet with decent clearance.
_________________ It ain't whatcha got, it's whatcha can get to the ground! |
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Cooltouch Full Member
Joined: Jan 07, 2007 Posts: 568 Location: Houston, Texas
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Posted: March 8, 2008, 9:18 pm Post subject: Re: Two into One |
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Hey grizld1,
On the above bike, I've never ground the left hand pipe when leaning into a right hander. Usually the foot peg rubs before this happens.
Best,
ichael
_________________ Triple Tuning Forks Rule!
'81SH, '80SG, '78E, '77D |
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Jack Full Member
Joined: Mar 15, 2005 Posts: 411
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Posted: March 8, 2008, 9:35 pm Post subject: Re: Two into One |
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Cooltouch....bring your XS down to the Smokey Mountains of WNC,I'll show you how easily it is to peal back the metal of the left header,might even be able to score on the right if I lean it over hard enough :lol:...........Jack
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Cooltouch Full Member
Joined: Jan 07, 2007 Posts: 568 Location: Houston, Texas
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Posted: March 9, 2008, 12:30 am Post subject: Re: Two into One |
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Jack,
If I'm rubbing a peg, I'm leaning far enough over for my tastes.
_________________ Triple Tuning Forks Rule!
'81SH, '80SG, '78E, '77D |
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dwyatt Full Member
Joined: Dec 21, 2006 Posts: 186 Location: Houston/Malongo, Angola
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Posted: March 9, 2008, 3:19 am Post subject: Re: Two into One |
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Michael,
I don't need the muffler, just the header and will paint it black anyway, so those problems are no issue for me. I'm building a RR track bike and want to run this type header with a shell megaphone. I'll probably do some cut/weld or bending to tuck in better for ground clearance. I'm also changing the rear shock mounts to raise the rear for handing, but it also improves ground clearance. Let me know what you think, I live in the Woodlands.
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wally Full Member
Joined: Apr 04, 2007 Posts: 538 Location: Sydney Australia
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Posted: March 9, 2008, 3:41 am Post subject: Re: Two into One |
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Supposedly better scavenging? Tell you what, though, when I bought my XS, it had a set of Mac 2-into-1s on it. Been too cheap to replace them with something else. I find the Mac's exhaust note annoying. A good set of 2-into-2s sounds much better.
Best,
ichael
Thanks Michael
I went on a run today with two into one pipes
Seem to have more torque?
Wants to get up & go
also more engine vibration than I had with the original pipes?
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Jack Full Member
Joined: Mar 15, 2005 Posts: 411
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Posted: March 9, 2008, 11:59 am Post subject: Re: Two into One |
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Cooltouch............it's not the leaning over that gets the pipes,it's the degree of the radius turn and road service camber,entry speed,riding style and ground clearance provided under suspension loading................Jack
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xsthomas Full Member
Joined: Feb 23, 2008 Posts: 26 Location: Chesapeake Va.
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Posted: March 23, 2008, 9:39 pm Post subject: Re: Two into One |
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Im looking for a 2 / 1 myself, black header and use my muffler. getting hard to find. I hear there is only 1 company left that makes these and there out of production now, when they will be available who nows. I see a few on ebay, not sure I want to risk that, the fit on some of these can be bad, I have a 75 XS 650, most I see are for other years. Phil
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pumps 650Rider Supporter
Joined: May 29, 2007 Posts: 1993 Location: Kansas City, Missouri, U.S.A.- 1977 XS650 "D" Standard
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Posted: April 2, 2008, 6:36 pm Post subject: Re: Two into One |
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Something I saw on ebay that it says is a "factory 2-1 off an XS650". pehaps someone can elighten me to the facts on such a thing ? If there is/was?
cgi.ebay.com/ebaymotor...dZViewItem
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5twins Full Member
Joined: Aug 05, 2006 Posts: 1616
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Posted: April 2, 2008, 7:31 pm Post subject: Re: Two into One |
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There was never a factory 2-1 to my knowledge. If it was factory, I'm sure the header flanges would be finned. I also don't think it would have that sliding track mount on the muffler part, a definite sign of aftermarket.
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xs1961 650Rider Supporter
Joined: Apr 23, 2007 Posts: 1808 Location: uk
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Posted: April 3, 2008, 3:58 am Post subject: Re: Two into One |
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No such thing as a 'factory 2-1' ....
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grizld1 Full Member
Joined: Jun 20, 2005 Posts: 594 Location: Carbondale, IL
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Posted: April 3, 2008, 6:51 pm Post subject: Re: Two into One |
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If you don't like the exhaust tone of the mechanical baffle, MAC makes a "competition" baffle which is a straight-through glasspack design. I use them in my 2-2 system; nice sound, very mellow, not too loud. My only gripe is that they use a louvered core rather than smooth.
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