Add Wish List Quick view Add to Cart The item has been added RaceChip RS - Mercedes-Benz S-Class (W223) (from 2020) S 400 d (330 HP/ 243 kW) Torque Increase (NM):67Economy Gain (MPG):20Power Gain (PS):34RaceChip RS Tuning Box - Non Bluetooth VersionThe bestseller of the RaceChip tuning boxes. Completely newly developed optimisation software with engine-specific tuning, high-quality hardware... MSRP: £349.00 Add to Cart The item has been added Compare