HPA Motorsports - GEN 4 Switchable Haldex Controller - Only 0BS/0AY Left in Stock - While Supplies Last Engine - Narrow Slots Reduce Air

- Narrow Slots Reduce Air Noise

Winning the Red Dot Design

- Complete replacement for restrictive factory part

- Rear Silencer

- Makes removing electric diverter valve a simple task

HPA Motorsports - GEN 4 Switchable Haldex Controller - Only 0BS/0AY Left in Stock - While Supplies Last Engine - Narrow Slots Reduce AirTake full control of your GEN 4 Haldex equipped car with three selectable driving modes: Stock, Race, and Eco! While sharing the OE and RACE modes of the Generation 2 controller, the Generation 4 controller replaces SPORT mode with ECO mode. Eco mode was developed for increased fuel efficiency. Its purpose is to reduce the torque transfer from front to rear during normal highway driving (coasting), but will immediately engage the system if a wheel