Another exhaust question

Scorpio1963

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Guys I need to know what year down pipes and collars will fit the 81 xs400 sohc.Also can the piece on the pipe on the front that keeps the colla on can it be heated up and and removed?
Thanks
 
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normally the down pipes are separate and join where they meet the muffers. If you have the "custom" style, are you saying they are welded to the H connector?
 
Hey Drewpy I just have the down pipes with mufflers,the center crossover piece has been removed.At the top piece of the pipe where the 2 piece gaskets go theres the collar that broke off.It keeps the collar from coming off the hedder pipe So without making another cut in my pipe since I just had welded I need to know if that front piece thats on the pipe where it goes into the head if it can be removed somehow?I wish I could afford the Mac system Id be done with piece of garbage I have for an exhaust system.
Of also my right hand side down pipe is in bad condition where PO laid the bike down and its scraped and crushed.So I need to know what other years will fit my bike.
 
Somebody on here (I think here) made an exhaust system out of that stainless steel flex tubing - at least I think it was the whole system. Not sure how they arranged to fit it to the engine.
If riding the thing is your main thing ( -vs- fixing it to suit others' aesthetic) maybe something like that could get you back riding instead of hunting parts.
 
Im going out to a motorcycle boneyard about 20 mile from me tomorrow and look around.I know they have some xs`s out there so hopefully I`ll get lucky.
 
I found a pair of '79 headers for mine. They fit correctly and aren't joined by the crossover pipe in the middle. Try to find a pair that come with the metal gaskets and the nut rings (the metal collar that holds them to the engine block) since the '79 has a different style than the '81. Also, you'd have to hack the '81 exhaust if you want to get the collars off. I think I paid around $30 off ebay for the pair. They fit correct when you use the gaskets and nut rings that are for that year. Check my thread history under first mod, it has pics for you.
 
The bone yard im going to usualy has sets of down pipes just kinda hangin around their yard literaly.Ill take mine with me to match up.I cant go to the boneyard today I have rescedule that.
 
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I know that any year back to '77 will match up but you would need the nut ring from that year. Mine from '79 were reversed in style from the stock '81 exhausts. It's helpful if you can find the ring and gasket with the headers so you know it will all fit together well. My stock gaskets did not match up to the older style rings.
 
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