If these parts don't provide any advantage, why would the BMW Motorsports engineers develop them? I don't think it's just to charge more for M cars.
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2011 135i DCT M/Sport Jet Black Cobb STG2+ | M3 Suspension Parts | ERW Charge pipe | VRSF 7 Intercooler | Cobb DP | MFactory LSD w/lockdown | KW V1 Coilovers | Apex ARC-8 | Dinan camber plates | BMS Intake | M3 Cluster & steering wheel | 1M Strut brace
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