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      11-08-2012, 09:04 AM   #12
E93Blackhawk
First Lieutenant
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Drives: 2008 335i M sport
Join Date: Oct 2011
Location: London

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Ive seen a post saying a member is only making x psi on JB4.

Yes it could have been a boost leak, WG issue etc.

But my question is does different maps on the JB4 create different psi levels?

Last edited by E93Blackhawk; 11-08-2012 at 09:18 AM.