HJS Tuning ECE Downpipes (Audi/Seat/VW) Audi > S4 > 4.2 V8 quattro B6 Saloon/Sedan Research Octane: 120+

Research Octane: 120+

Every unit is rigorously pressure tested for ultimate reliability

The hose is constructed to provide a constant radius reducing restriction in the initial stage of the intake tract and is a direct replacement for the factory pipework

generated by its high-revving Lamborghini-derived 5

HJS Tuning ECE Downpipes (Audi/Seat/VW) Audi > S4 > 4.2 V8 quattro B6 Saloon/Sedan Research Octane: 120+High performance, road legal downpipe with sports catalyst made by HJS in Germany. Designed to optimize vehicle power and sound while maintaining full European emission standards with ECE approval. Plug and Play fitment. Sound levels within 2dB of OE.