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      08-09-2018, 09:50 AM   #21
Merlin82
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Drives: 2011 BMW X3 Xdrive35i
Join Date: Feb 2017
Location: Edmonton, Alberta

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I find that cold start is loud, but when its not under load it stays relatively quiet. Under load it gets a bit louder and makes a kinda whooshing noise when you really get on it and into higher rpm. Also found it drones a little bit at highway speeds. Overall I like it, Id be curious to hear it with a resonator delete. Maybe that would change things enough to get rid of the drone on the highway.
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