Audi RS4 with a 1000+ whp Twin-Turbo 4.2 L V8 Mazhar Iqbal enjoys drifting his Audi B5 RS4 with his friends from Buldre Racingteam in Norway. Mazhar replaced the RS4’s twin-turbo 2.7 L V6 with a twin-turbo 4.2 L 32v Audi V8. The V8 makes 1,065 h...