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      07-21-2015, 06:11 AM   #32
pokeybritches
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Drives: ESS/G-Power Z4M, VF Z4, 996tt
Join Date: Sep 2009
Location: Los Angeles

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Garage List
2006 BMW Z4M  [10.00]
2006 BMW Z4M  [8.50]
2003 BMW Z4 3.0i  [9.00]
It's a BOV - no recirc. It's venting to atmosphere.

2 psi is what's necessary, and it's what the car is tuned to use. 6 psi can cause part throttle issues and put extra strain on the blower.

Below 3k rpm the BOV is almost inaudible, so it won't sound like the car is having an asthma attack on the highway.
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VF Engineering Z4 3.0i, ESS Z4M, G-Power Z4M, 996 Turbo
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