Swapping between twin-turbocharged, supercharged V6 and even a naturally aspirated V8 engine in times gone by, the B9 ... S4’s 3-litre single-turbo petrol V6 is one still used throughout the ...

Buckle up, gearheads, because we're diving deep into the heart of Audi's B9 generation A4/S4—a ... or tearing up the asphalt with the S4's robust 3.0L Turbo V6, a downpipe swap is your ticket ...