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Old 11-07-2013, 10:44 PM   #13
Scooby Newbie
Member#: 248089
Join Date: May 2010
Location: albany, ga
2011 wrx premium
metallic grey


You have some learned knock which is costing you power and from what I see about 1 to 1.5 psi of boost. Maybe poor fuel
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jerbull88 is offline   Reply With Quote