The high pitched whirring is normal and I was fine with it in my previous quad motor. It's the leaf blower pitched sound that is highly annoying. My recording didn't accurately capture the volume of the noise. It's a lot louder than what you hear here.
Can anyone with a dual motor chime in and let me know if you're hearing the same sound in the video? It's like a low buzzing/grinding noise that's loudest from 30-45mph. My wife asked me the other day why this car was so much louder than the quad motor we owned previously.
Edit: Updated video...
I've owned a QM for the past year, sold it and leased a DM that I picked up last week. The most noticeable difference to me is the motor noise. I'm not sure if I have a faulty unit but the noise while driving between 30-50mph is significantly louder on the DM. Whereas the QM sounds like a...
I had this done and was told it was because the original amp was not delivering enough power to the rear speakers. Noticed a significant boost to the low end frequencies which subsequently caused new rattles to exhibit.