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Old 02-13-2012, 02:36 AM   #21
hugemoth
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Joined: Sep 2007
Location: Bend, Oregon summer, Snowbird in winter
Oddometer: 2,582
My Rotax 582 ultralight engine uses a 2 into one pipe. It's 65 hp, rotary valve, very wide power band. I think the 100 hp snowmobile and watercraft versions use 2 into one also.
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