Learn more about how to repair an Audi A4 KO4 turbo with
this instructional video. Audi A4 KO4 turbo repair should only be performed
after fully understanding all parts of the turbocharger. As an upgraded
turbocharger, this KO4 turbo will add
about 75 horses to the power of your Audi engine. This brand new KO4
turbocharger upgrade has a larger internal housing and is built to factory
specifications as a direct replacement with the exact same fittings and ports.