This valve kit is an evolution of the FMARSDV dump valve we market for the 8P chassis RS3. It was developed for those who have tuned or plan to tune, their 8S chassis Audi TTRS or 8V chassis Audi RS3 in excess of 450hp.
This valve kit is for VAG vehicles equipped with the 1.4 Tsi twincharged ( supercharged and turbocharged ) engines that have the electronically controlled bypass valves ( 2 bolt fitting).