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      12-04-2012, 05:05 PM   #6
Private First Class
Drives: 135is
Join Date: Nov 2011
Location: MD/DC/VA

Posts: 187
iTrader: (0)

I drive a 135is so I never got to compare the stock exhauset with BMW's PE. I can however chime in with a few impressions.
1. Cold Starts sound amazing!!!
2. Like one of the above post mentioned, you get a nice burble every time you lift off.
3. It is a friendly daily driver, loud when you want it to be loud.
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