AUDI S4/S5 B9 Heat Shielded Downpipes | PW Motor x4m the factory low-pressure fuel pump

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

Its oversized build further enhances engine performance across the board

Engineered with precision

Mercedes S430 – 2004-2006

No check engine light (CEL) triggered

AUDI S4/S5 B9 Heat Shielded Downpipes | PW Motor x4m the factory low-pressure fuel pumpUpgrade 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