Brutal Sleeper - Ultimate Audi Tuning by Hannover Hardcore - Extreme fast Audi S4 B5 2.7 Bi-Turbo Quattro with RS4 engine stroked to 3.0 and around 1200HP. Brutal fast acceleration 0-300km/h and loud anti lag exhaust sound. Hello and welcome to the Car Acceleration TV channel. This amazing Audi S4 Biturbo is powered by RS4 3.0L Turbo Quattro engine with more than 1000 HP and i think it´s a real sleeper and the fastest Audi S4 sedan in the Germany. The tuning guys from Hannover Hardcore, Philipp Kaess did an excellent job. I have filmed this ultimate S4 B5 2.7 with RS4 engine at RACE 1000 standing half mile and 1/4 mile race event. Special thanks to the guys from Hannover Hardcore. Also the tuner Tuntec did an excellent job. Enjoy and don´t hesitate to subscribe. Many insane Audi A4, RS2, RS4, RS6 and other 1000 HP cars videos coming soon.