Brentuning
Any one have any personal experience with them? I have been reading 50/50 things about them so I don't know if its worth going up for a pro tune or not.
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2008 335xi - LCI conversion - Satin Pearl White Wrap - Oss custom headlights - JB4 - (VRSF downpipes - Exhuast- Intercooler) - AA BOV - AFE Intake - Accuair E-Level Suspension - Forgestar F14 Super Deep Concave - Shop of Choice (ACI Dynamix)
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