N55 PPK installed..idle roughness and hesitation.
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05-07-2012, 10:18 PM
Drives: 2011 Jet black 335i sedan
Join Date: Mar 2012
Location: South Florida
I appreciate all the information. Im really considering going with the PPK because of the issues with voiding warranty. I would consider a flash for the reason that its not a pain to take out and put back in. Interested to see what Cobb puts out.
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