Thread: SSI or Headers?
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Homegrown Homegrown is offline
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Join Date: Mar 2009
Posts: 64
SSI manufactures systems for both 911 and 930. The principal is the same as both engines benefit from equal length primaries on the low end and mid range.

Howe much is power up compared too Standard piping?

Is spool reduced a lot?

Best regards/Stefan
Old 10-23-2011, 10:39 PM
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