Add Wish List Quick view Choose Options RaceChip XLR5 - BMW 8 Series (G15) (from 2018) M 850i (530 HP/ 390 kW) Next-gen throttle response for your BMW 8 Series (G15) M 850i 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