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Old 07-10-2012, 03:58 AM   #414
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Join Date: May 2008
Location: KSA
Posts: 26
My Ride: //HPF E46 M3 stg2
Originally Posted by HPF Chris View Post
10:1 to 11:1 on full boost is perfect for our kits. 14:1 is ideal "at idle", but we will usually see between 13:1 and 14:1 at idle. 12:1 is a little on the rich side at idle but won't hurt your motor any.

What about when the A/C is on ? is it the same?

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