skrapiron -FSO
Serious Thumper
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Instant Human.... Just add coffee..
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Pittsburgh, Pa
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They're the same ones I used on my bike.
They'll work, but you will have to make some modifications.
The Sportster pipe has a cross-over hose built into the muffler, instead of the header like on the dyna. To use it as a single muffler, the crossover tube must be blocked off.
I used a 1 7/8" freeze plug and had it welded in place over the tube.
Inside the muffler, that same tube has to be shaved down to allow the muffler to fit all the way up the header pipe. You'll have to use a dremel tool and several cut off discs to get it cut clear.
Once it is capped and de-snorkeled, you will need to line up the mounting hole on your stock muffler brakcet. It won't fit the stock holes, so you'll have to drill a new one. I fabricated a second bracket which bolts into the stock one, but allows me to use both mounting studs on the muffler.
If you're handy with tools, it will take about an hour and a half to do. Just one bit of advice. Get the entire thing welded shut. Don't mess around with clamps or high temp sealant. They may work for a short while, but don't last. Any muffler shop can weld the muffler and header together as well as weld the freeze plug shut for just a couple of bucks...
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