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      07-12-2019, 08:19 PM   #5
TM9030
Private First Class
United_States
21
Rep
143
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Drives: 2008 135i
Join Date: May 2018
Location: San Diego, CA

iTrader: (0)

My car had the same issue...I found out the previous owner had flashed the car with an MHD tune.

It's weird, I've read that some people have no issues passing smog with an MHD tune, but some do.