Add Wish List Quick view Add to Cart The item has been added RaceChip RS + App - Mercedes-Benz CLS (C/X218) (2011 - 2018) CLS 350 BlueTEC (258 HP/ 190 kW) Torque Increase (NM):113Economy Gain (MPG):20Power Gain (PS):57RaceChip 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