AUDI S4/S5 B9 Heat Shielded Downpipes | PW Motor x4m Designed with sophisticated CAD modelling

Designed with sophisticated CAD modelling tools to ensure high flow and a perfect fit

Larger Filtration Element Surface area vs OEM

this system offers a larger surface area for superior airflow and filtration

AMG GT63(S) (290) M177 LS2 4

the factory low-pressure fuel pump has become a critical bottleneck

AUDI S4/S5 B9 Heat Shielded Downpipes | PW Motor x4m Designed with sophisticated CAD modellingUpgrade your AUDI S4 S5 B9 to new levels of performance with PW MOTOR heat shielded Downpipes. Designed with sophisticated CAD modelling tools to ensure high flow and a perfect fit. With a range of diameters from 4. 5 to 5 inches depending on the application, are replacing the OEM downpipes, Laser cut brackets to fit onto the OEM provided mounting points. Completely assembled and TIG welded with love from experienced hands. Key Features of AUDI S4 S5