520i (170 HP/ 125 kW)

We developed RaceChip XLR5 to increase responsiveness on the road. Our innovative throttle tuning system lets tune your engines reactions to your taste choose from 7 separate stages. You will love your cars improved dynamics we promise.Your engines...

The optional controller allows complete control of the RaceChip XLR5 directly on the dashboard. Thanks to the Bluetooth connection to the XLR5, the controller is wireless and can be easily placed within the driver's reach. Additionally, the integrated...