along with a few screaming supercharged passes by the camera. When we brought you AudiWorld's story on the MTM-tuned RS4, there were only two questions we had: how much and what's it sound like?

Their newest creation is tasked with pushing the performance envelope of Audi's most hardcore grocery-getter, the RS4. By strapping a liquid-to-air intercooled, Lysolm-type supercharger onto the 4 ...