I got my MPE installed a few weeks ago and got the cold start vibrations and loud drone issue right away. I brought the car back to my dealer and according to them, there were some misalignments ("the foil under cover was misaligned"). Not quite sure was they did but cold start vibration and drone are gone. The only visible thing is that the tips are pushed further in than the first time.
Quote:
Originally Posted by Sman
Yeah the drone kind of stinks around the 3k marker on the highway at 80 mph or so.
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Even if the drone sensation is gone, the exhaust is still louder around 3K and it is kind of annoying but I got used to it. I also noticed I tend to drive faster as it gets quieter around 85/90mph...