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      09-14-2012, 09:53 AM   #1173
cgy-jim
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Drives: 2011 335Xi, Special Edition
Join Date: Jul 2011
Location: Calgary

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I'd love to do a JB4 or a Cobb but I like having the warranty in place - my guess is that the dealer can tell even if you unplug the JB4 before it goes back in. Hell, if I was the software engineer, I'd track every critical variable - it wouldn't be hard to map the torque against the HP and watch for anomalies.