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Old 05-22-2018, 09:27 AM   #14
BMWM.D.

 
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Drives: ZL1/335i
Join Date: Apr 2014
Location: Santa Barbara
Posts: 870
This has been mentioned a million times, but pulling the fuse really only gives you a little more sound at steady cruise and light throttle positions vs track mode. Definitely not a huge difference, but noticeable to me.

I put headers on my car, and along with the stock muffler, it’s perfect. The ZL1 “suitcase” muffler doesn’t produce any noticeable drone/resonance, which is maybe why it seems quieter than a Z06. I had a really similar setup on both of my C6s (headers into stock ZR1 mufflers), and there was quite a bit of drone. I don’t think WOT was any louder than my ZL1, but you could hear it more inside the car. If that makes sense.
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