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      02-18-2013, 10:52 AM   #16
Vintage
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Drives: 2010 Z4 35i and 2014 535d x
Join Date: Aug 2009
Location: Austin, Texas

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well, I have Eisenmann Race and AR race cat DPs; it is a great combination. I had the race cats in the DPs since Eisenmann eliminates the secondary cats; I did not want what would have been essentially a straight through system has we not included cats in the DPs