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Buell Forum » Old School Buell » M2 Cyclone » Archive through January 25, 2012 » Header question « Previous Next »

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Hogluvr
Posted on Monday, October 31, 2011 - 10:48 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Just picked up an '01 M2, header is bunged up so I'm looking for another one. I've heard that the '97-'99 headers were different from the '00-up. What is the easiest way to tell the difference between the two?
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46champ
Posted on Monday, October 31, 2011 - 11:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Early headers have a 2 inch collector 99 and later are 2 1/2 inch.
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46champ
Posted on Monday, October 31, 2011 - 11:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Early headers have a 2 inch collector 99 and later are 2 1/2 inch. The big split when it comes to tube frame bikes is the 99 model year.
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Ratbuell
Posted on Monday, October 31, 2011 - 11:17 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

97/98 are the round-curve, over-frame, S bend style. Look at an S2 or S1; they look the same.

99-up are the 2.5" collector, under-frame, T bend style. Visually the same as an X1.

You can use an X1 or late S3 header, you just have to put a plug in the oxygen sensor bung.
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Hogluvr
Posted on Wednesday, November 02, 2011 - 07:19 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thanks for the info guys. I have another question: Do you need a special muffler to go with what I think is a race header? Someone offered one up to me pretty cheap, it bends toward the back instead of the side which makes me think it is a race header. It has a couple scrapes and one shallow dent, is there any way the dent could be pulled?
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