1979-1983 Exhaust Pipes/Mufflers

[JonW]

Are the pipes and mufflers for these model years able to be separated ( mufflers slip onto exhaust pipes), or are they all a one piece unit?

I ask, because I want a set of header/exhaust pipes in that year range but I do not need the mufflers and associated cross-over tube.

 

[Jim]

I know for sure the '80-'83 are all one piece. Pretty sure the '79 is also.

 

[Kevin Werner]

There is a process for which I am not proud of revealing where by a 1/2 - 3/4 inch rod is inserted into the flow restricter (muffler) and said rod is struck repeatedly with a heavy mallet. The offending obstruction being displaced, the end result being a reduction of flow restriction through the restrictive device.
Yes, I banged the fu$% out of it until the welds let go...

 

[jetmechmarty]

I know for sure the '80-'83 are all one piece. Pretty sure the '79 is also.

All of the Special exhausts are one piece from ‘78 to ‘83. It’s been more than 10 years, but I did separate a set of Special exhausts mufflers from headers. It involves cutting the welds and removing layers. I don’t remember all the details, but it can be dismantled in the fashion it went together.

 

[YamadudeXS650C]

https://www.xs650.com/threads/cutting-stock-exhaust.48950/

 

[gggGary]

If you cut off the muffler the head pipes need to have some sort of spacer inserted between the inner and outer pipes where the muffler was welded on, there's a standard auto tailpipe adapter that does the job.
Pics have dissappeared; https://www.xs650.com/threads/xs-pe...s-on-stock-special-headers.36716/#post-369813
https://shop.advanceautoparts.com/p...-adapter-1-1-2-id-x-1-3-8-od-548520/5600308-P

548520 1.5 x 1.75 in. Tail Pipe Reducer Adapter​

the 548520 is a standardized exhaust part #

 

[JonW]

Wow, thank you everyone for the super valuable input, links, etc.!!

 

[gggGary]

Worthwhile plowing through the whole thread?
https://www.xs650.com/threads/after-market-exhaust.276/
unfortunately some pics and links have disappeared.

 

[gggGary]

I added a post/pics to that thread some earlier pics links have gone missing.
Would be interesting to see charts info from Gordon Scotts exhaust pipe site.
https://www.xs650.com/threads/what-happened-to-gordon-scott-engineering.16498/

 

[OLD ROOKIE]

Thank you Gary,
About tail pipe connector,
Is the proper connector 1 1/2"X1 3/4" or 1 1/2 X 1 3/8" (as per your link) ?

Don't want to have to go stand in line at Autozone twice.

548520/5600308-P?clickid=TzuR5nQTExyPUq22XT28z0jDUkHwjV19uXop1Q0&irgwc=1&utm_medium=affiliate&utm_source=ir&utm_campaign=121977&utm_content=994801&c3ch=Affiliate&c3nid=IR-121977

 

[nj1639]

1 1/2" od x 1 3/8" id
The stock inner head pipe is 1 3/8" od, so.......