Quote:
Originally Posted by Tenac
A resonator is not a muffler all it does is adjust the flow to smooth it out so you do not get drone in the cabin. You will noticed many high end mid pipe setups still have resonator to account for this.
I did this on my M50i X5 it did nothing for the actual sound out put, however the cabin had very slight sound added which easily is covered by conversation or music. I would never do it again, and just buy a cat back system for the sound I was looking for.
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It did increase the db's for the car I have and own with the video posted- clearly its louder than one without (pre 2ndary installs). I kept the same tone but got more "noise"
but then again my car is not an M850i...
Further its a 150 dollar job to remove and straight- to the OP its easy to reverse too.
Edit: did this also on my F90 with the same engine; same increase in decibels and extra pops (if you want that shit LOL)
I did find this video on the M850i --- its full of bs so go to around the 8 min mark