When your factory K04's just are not enough and it's time to take it to the next level, the ASP RS6 Kit will take you there. Using factory KKK RS6 turbochargers from the 4.2L RS6 modified for mounting purposes only, we increase the output of your S4 once again.

Included in AutoSpeed's fueling kit are custom made and matched components working in harmony with your factory Motronic Engine Control Unit (ECU) remapped by ASP, you will experience stock like driveability with power levels reaching 400+hp (wheel).