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Originally Posted by cmkde
I just installed my M Performance exhaust as well, these videos just don't do it justice, once you get a couple hundred miles on it, it has a nice throaty exotic gargling sound. No overt droning when cruising and a nice pop when the car shifts, really underrated sound-wise in videos. BMW did a great job with the sound.
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The PE was the first thing I added to my 2010 135i and love the sound. Great burble and snarl. Very slight performance increase. The PPK made a big difference in performance, pretty much the same feel as the M235i from what I could tell with one test drive of the 2.