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      09-10-2009, 10:11 AM   #13
Vince@ V K Motorwerks
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Drives: 01 Black 911 Turbo, 09 X5
Join Date: May 2007
Location: Bloomingdale, IL

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Our orginal set was a 3inch tapering to a 2.5 right before the flange. We also tested the 2.5 inch the way we have it now. We did not see any gains with one over the other. The bottom line is that ALL the current downpipes are going to be 2.5inches at the flange. Please wait to have them first before you start saying that these are not high quality.
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