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      09-09-2012, 03:09 PM   #6
rjd598
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Drives: E90 M3/ F30 328i
Join Date: Jan 2009
Location: San Diego,CA

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2016 BMW 328i  [0.00]
2010 BMW M3  [4.50]
Quote:
Originally Posted by mshab356 View Post
If the drone is the issue, I've heard RPi's exhaust drones like crazy. I love my Active Autowerke exhaust. Very unique low growl/high pitch exotic sound and barely any drone!
The rpi gtm which is full catless I heard drones too. Op is talking about gtc which is a quieter muffler with the same xpipe as the gtm. I think rpi claims less drone or none at all with the gtc. The whole point was to tone the gtm down with the gtc muffler
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