-20% Add Wish List Quick view Choose Options RaceChip XLR5 - Audi A8 (4H) (from 2009) 6.3 W12 (500 HP/ 368 kW) Next-gen throttle response for your Audi A8 (4H) 6.3 W12 The RaceChip XLR5 is our latest throttle response controller with advanced calibration and ultra-precise response curves. The most refined... RRP: Was: £199.00 Now: From £159.20 Choose Options Compare