Add Wish List Quick view Choose Options RaceChip XLR5 - Mercedes-Benz S-Class (W220) (from 1998) S 63 AMG (444 HP/ 326 kW) Next-gen throttle response for your MB S-Class (W220) S 63 AMG The RaceChip XLR5 is our latest throttle response controller with advanced calibration and ultra-precise response curves. The most... RRP: Was: Now: £199.00 - £249.00 Choose Options Compare