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Message: <blockquote data-quote="1816case" data-source="post: 129960" data-attributes="member: 11870"><p>Putting some kind of exhaust on my mitey mac 8b. it has the Onan engine. Currently only has the exhaust flanges on the engine with maybe 3" sticking up.. I bought some 1.5" exhaust piping and am wondering can I run the 2 exhaust tubes each up and into a single pipe of same 1.5" or maybe a 2" tube and run that single tube back to a muffler say off a tractor ..? will that restrict flow?</p></blockquote><p></p>