Thread: Theoretical problem
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Old 01-31-2010, 09:22 PM
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David Hodgson David Hodgson is offline
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Rob, If you can graft a cat conveter into the collector it would help.

I have a home made 4" outer with 2" perf tube and had to fit a mini version of the spiral to sit in the 2" to get through rego, though I only had to comply with 96dBa
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