Getting the 650 GC tuned!

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Navybob

Guest
#1
Finally decided to get my 2013 650i GC tuned. In the shop today so I should have it back by next week, ECU’s need to be sent off. Decided to go with the ESSTuning Stage 1 system. Supposed to bump up hp to 550 and torque to 560. Should make a great car that much better!