Thread: **Riss Racing** Dual Divert Valve Kit!!!
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      08-26-2008, 02:34 PM   #20
Riss Racing
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Drives: E60 M5/E92 335/HUMMER H2
Join Date: Jun 2007
Location: Irvine, CA

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I've had many questions what the purpose of the hard pipe is. This is your stock piping....

This is why you also add a hard pipe to your DVs opposed to just throwing DVs on your OEM piece.

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