The Injen Intercooler Pipe Upgrade Kit is exactly what your vehicle is craving. Larger diameters, better bends, and a stainless design make for more horsepower, more torque, better flow, less turbo lag, and a happy driver!
The part number for this item is SES3082ICP and it fits 2018-2021 Audi S4 S5 3.0 Turbo V6 (B9) models.