When your factory K03's just are not enough and it's time to take it to the next level, the ASP K04 Kit will take you there. Using factory KKK K04 turbochargers from its european RS4 brethren along with larger inlet tubes for increased breathing increases the power potential significantly.

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 360hp (wheel).

This is a bolt-on kit and all necessary parts for upgrade are included.

Wicked Motorsports is the premier B5 S4 turbo upgrade center. Please contact us for all your installation work!