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Magnum .91 4stroke muffler extension

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Magnum .91 4stroke muffler extension

Old 08-23-2015, 03:32 PM
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Default Magnum .91 4stroke muffler extension

Hi everyone need some input please. I need an exhaust extension for my muffler. Any recommends or experiences with some sort of high heat tubing to use on the muffler that will stay on.

Old 08-23-2015, 03:45 PM
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Since its an OS clone you may find one of these flex pipes work http://www.osengines.com/accessories...pes/index.html

Old 08-23-2015, 08:11 PM
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There is also the exhaust deflectors on the tower site. The flex pipes are cool but require that you have the pipe hard mounted with something like plumbers tape onto a solid place like the fire wall or the vibration will break them in a hart beat.
I also use the Magnum header on my OS engines when I can't get a deal on the OS part. Problem with both of the brands are the threads are cut too deep and will break if they aren't hard mounted. It's the weight of the muffler and the vibration. Nothing new about it. I had a machinist friend make me one and it has lasted several years now.

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