I think those are made by Mac.you can cut down some pipes but these bikes like back pressure so exhaust should have a baffle.A stock air box also really makes these bikes run so much better.
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Date: Sun, 4 Jul 2010 20:54:27 -0700 (PDT)
Subject: Re: my 76K rat cafe
Those drag pipes are awesome, did you make those yourself? I want to do the same to my 77 cb750f, I was going to just cut the stock pipes but took a closer look and they were twisted at different angles (instead of straight like yours).
1976 CB750K
1973 CB750K
1970 Chevelle SS540