cl450 scrambler exhaust 2-1

[dumbkid]

I just picked up a scrambler exhaust for my 1974 cb450. It's from the scrambler of the same year. I would like to make it into a 2-1 exhaust. I was planning on just picking up a Y-adapter and working from there. So I've got a few questions.

1. I would like to know what size diameter the single exit diameter of the Y should be, if that makes any difference at all?
2. Muffler recommendations?
3. Online vendor recommendations to purchase 2-1 Y-adapter.

Here's an example of what I would like to do with the exhaust, but most likely a different style exhaust.

 

[TheBullitt]

Yo! I'm looking to do the same thing to my CB350. I got the CL pipes and want to add a collector and run a single muffler. I found (from another post on DTT) a company who makes them; http://coneeng.com/pdf/motorcycle/MC%20Collectors%20PDF.pdf

I'm not sure exactly which ones we need. My other question is, can I run the whole set-up without a brace somewhere else - ie only connected at the engine. The stock headers are damn solid but I'm not sure if that would put unnecessary strain on the engine...anyone?

 

[Swapmeet Louie]

you'll need a slip joit on one pipe,they are both at about 30 degree so they won just slip into the head if they are permenantly connected.