Thread: Golf Tee Mod
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      11-20-2010, 06:33 AM   #3
Alext
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Drives: B M W
Join Date: Apr 2008
Location: Everest

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The Z4 35i/is is very easy to do this mod on.

All you do is look under the right exhaust and you will see a S-shaped rubber pipe going to the flap actuator. Pull this out and block it with a golf tee and seal the actuator end too to stop dirt getting in.

Alternatively just get two small zip ties, kink the rubber pipe and tighten the zip ties over it to stop any air getting through. Takes 5 minutes max.

There are other methods that use something to block the pipe like a ball bearing and reconnect or hose caps to block off the hose.

It improves the sound at low rpm/idle. So you basically get more burbles and sound when at cruising speed.
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