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Kirkham Motorsports

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Old 07-16-2012, 06:07 AM
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I started out with this then I made up a small spiral / auger insert to go inside the 2" perforated pipe inside the 3.5" pipe. I found that it was a bit restrictive so I thought what if I removed the centre pipe. I made up a spiral and slipped that in It made a difference so I machined up some thicker washers and turned them into a spiralinserted that into the 2" perf tube and wrapped it with s.s brillo pads and got this I'm still after a few less decibels. I'm wondering if the 'cones' would help. The whole baffle insert is only about 9" long I tried adding an extra one but it didn't make any difference.
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Last edited by Rob. Smith; 07-16-2012 at 06:56 AM.. Reason: pics didn't come out ?????
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