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      02-22-2014, 10:40 AM   #7
milocher
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Drives: 2009 135i
Join Date: Feb 2013
Location: Calgary

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So, after lifting the car again yesterday and rechecking fasteners, bolts, and alignment; seems this set up just drones a ton on AT cars. I'll be removing the axle back portion today, and putting stock back on, I'm sure it won't sound too bad since I'll be keeping the cp-e midpipes. It's become quite clear that cp-e never designed this system for an auto transmission, especially once you factor in the alpina tcu flash and the car starts to hang around 1400-1800 rpm a lot more (drone zone).

Either way, I'll try selling the axle back portion to a M/T owner and start to explore my options from here.
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