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JB4  BMW S63TU/ M5 M6 X5M X6M JB4  BMW S63TU/ M5 M6 X5M X6M

Burger Tuning

JB4 BMW S63TU/ M5 M6 X5M X6M

$699.00

  latest kit for the S63TU M5/M6/X5M/X6M, the new JB4 includes functions never before available to the platform including on the fly map switching, boost limiting in lower gears for improved traction, an in dash...