C5 S6 suspension upgrades

[StardustV8]

As per post, ive a 2000 MY 4.2 V8 S6. Covered 160k in good fettle running 19" RS6 alloys. Im looking to change the OE springs and dampers. Anybody recommend any particular kit?

[Dr G]

Eibach pro-system (spring/damper package) is available for your car and generally quite well thought of

[pat_y]

Indeed, i had the Eibach Pro-street S coilover setup on my old S4 B5, was slightly harder than standard but excellent build quality and good adjustability, made quite a noticable difference in cornering.
Bilstein PSS coilovers are also very good but a bit more pricey.