Thread: My Z4 3.0
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Old 08-01-2013, 11:40 PM   #4
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Thanks! got some goodies for it coming up!

This is a shot of inside the engine

The 3.0 only came with this idea... that from the intake, it feeds the sound into the firewall and through to the passenger sides foot area so that you hear the sound in the cabin.

In tube 9 in the picture, there is a foam you can remove so you can hear the sound louder.
I removed that, and then in #6 on the picture there is a very large foam which i didn't remove... But thats for extra loud noise in the cabin lol.

Basically after 3000 rpm, it kicks in quite loudly...

heres an example

Here is another of them 2 side by side before the swap

Last edited by AlpWhitE46; 08-02-2013 at 12:57 AM.
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