GFB Diverter Valve for 2017+ Audi RS3 (T9351) Haltech These are meant for those

These are meant for those pushing to the absolute limits

(A90 A91 MK5 MKV)

(2) Carbon Fiber Side Skirts

A90 A91 MKV MK5

GFB Diverter Valve for 2017+ Audi RS3 (T9351) Haltech These are meant for thoseUpgrade to the Go Fast Bits DV+ Diverter Valve for Audi RS3 and S3 models for enhanced performance and reliability. Retaining factory ECU control, it offers sharper throttle response, faster boost recovery, and solves boost leak issues. With a direct fit replacement design and exclusive pilot activation system, it allows for higher boost pressure without noise or flutter. Install in half the time at more than half the price compared to other options.