Add Wish List Quick view Add to Cart The item has been added RaceChip RS + App - BMW X3 (F25) (2010 - 2017) 35d (313 HP/ 230 kW) Torque Increase (NM):115Economy Gain (MPG):20Power Gain (PS):41RaceChip RS Tuning Box - Bluetooth Version with App ControlThe bestseller of the RaceChip tuning boxes. Completely newly developed optimisation software with engine-specific tuning,... MSRP: £308.00 Add to Cart The item has been added Compare