Audi A6 sleeper hard launch Biturbo K04 acceleration sound insane S4 RS4 500+HP VEMS

Custom built Audi A6 C5 2.7 Biturbo with modified RS6 K04 Turbos, ported big bore heads, specially built Intake manifold and intake pipes, dual 76mm full exhaust pipes, VEMS engine managament powered by modified LPG system. Built in