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      08-06-2018, 12:25 PM   #5
KevsZ4
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Drives: 03 Z4 3.0
Join Date: Apr 2016
Location: Atlanta GA

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Quote:
Originally Posted by Zapata View Post
I found this one:




According to their website is compatible with 2006 Z4:

https://www.ecstuning.com/b-ecs-part...923ecs01-01~a/
Interesting, but this one looks like its vacuum actuated, which wouldn't make it "switchable" . I've since put the idea on the backburner. I still think it can be done, but it will involve deleting both the resonator and running all new pipe and tips.
Appreciate 0