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      04-11-2012, 02:35 AM   #26
Private First Class
Drives: 2008 E90 M3
Join Date: Apr 2012
Location: Pretoria

Posts: 154
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If you have done exaust mods the car will often run too rich sometimes even lean and therefore always better to do a dyno after a mod. If your car is running lean you could damage the valves and change your fuel map according
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