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      01-06-2013, 08:44 AM   #7
///Chase
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Drives: 2014 BSM m135i
Join Date: Mar 2012
Location: Brisbane

Posts: 364
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Quote:
Originally Posted by FDfranklin View Post
I have the berk full race on my car and don't notice any drone, I drive in traffic an hour each way to and from work so am usually in the low RPM range. I'm used to loud cars so maybe i just don't notice it? The only time the car sounds too loud is while constantly driving at 100-110 in 6th.

I have a video of my exhaust if anyone wants to hear it.
Between 2.5k-3k RPM in 1,2,3 it droned straight to my brain, like at high speed when you have 1 window slightly down.

The Berk Full Race has high flow cats in the mids, and the catless dps dont cause drone.

So i would put it down to the lack of cats in the n55 mids.
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