Thread: Finally! Riss Racing Downpipes for 335.. Amazing Power Gains and Info Inside!
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      06-29-2007, 10:58 PM   #27
baron
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Drives: 2011 BMW 528i
Join Date: Nov 2006
Location: Bay Area, CA

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Is this downpipe is simple replacement of the OEM unit? Any idea of the weight savings?
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2011 BMW 528i
2009 Nissan GTR
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