Re: Bending and/or cutting exhaust
3/4" electrical conduit, called EMT, makes a nice extension. You'll need a conduit bender and be able to weld but a custome extended pipe is not that hard to make.
Don't use flexible conduit. It is not gas tight and will leak its entire length.
I've used 3/4 and 1/2" EMT for a poo poo pipe style of pipe using the kit supplied muffler on the end. They're extremely quiet and contrary to popular opinion does not rob power.
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