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      03-05-2024, 01:25 PM   #2
CalAcacian
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Drives: 2018 M2
Join Date: Sep 2020
Location: Orange County, California

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Yes, if your current setup is on the stock cats and you are moving to a sport cat, any drone you have will be more noticeable. I have it on my setup running a Dinan exhaust and I have run several permutations of the setup:

1. full stock
2. stock cat and muffler with Dinan resonator delete.
3. sport cat with stock muffler and Dinan resonator delete.
4. sport cat with Dinan muffler and Dinan res delete (current setup)
5. sport cat with Dinan muffler and stock resonator.

The current setup has the most drone, but I just deal with it and use a valve controller to keep the exhuast valve closed for most normal driving.
Appreciate 0