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      09-15-2017, 10:03 AM   #5
cb1
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Drives: F82 LCI zcomp, e92 M3, e46 M3
Join Date: Jun 2011
Location: 91789

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Quote:
Originally Posted by Calvin36 View Post
Curious about the drone. Once you removed the muffler drone should appear. How bad is it for daily driving?
There is some drone between 2.5-3k rpms. I daily the car as well but the drone is not annoying or too loud.

I was going to add a j-pipe to eliminate the drone but decided to just get a valvetronic exhaust. I did my research/calculations and the j-pipe needs to be 35" long.
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