XYZ Racing Super Sport Coilovers — Audi S4 B6 4WD 2003-2004

The B6 S4’s 4.2-litre V8 sits ahead of the front axle, loading the nose harder than any four-cylinder A4 in the same range, and the standard quattro suspension struggles to keep that weight in check through fast direction changes. XYZ Racing’s Super Sport coilover kit for the Audi S4 B6 4WD (2003-2004) gives the chassis independently adjustable damping and ride height, so the front end can be tuned to resist dive under braking without losing the compliance a car this heavy needs on real roads.

For an owner splitting time between B-roads and the odd trackday, the Super Sport spec is built around exactly that use case: fast-road control with enough range in reserve to firm the car up for a circuit session, rather than one fixed setting that only suits a single environment.

What this coilover does for your 2003-2004 Audi S4 B6 4WD

36 clicks of damping adjustment let you separate low-speed compression, the kind that shows up over broken tarmac and speed humps, from the high-speed control needed when the V8’s weight pitches forward under hard braking into a corner. Because ride height is set independently at each corner, you can drop the S4 enough to correct the nose-down stance the factory springs settle into and lower its centre of gravity, without the drooping arches a fixed-drop spring kit tends to leave behind. The quattro system already puts power down well; a chassis that resists roll and dive lets the front differential get to work earlier out of a bend instead of fighting body movement first. On a car carrying this much weight over the front axle, tightening rebound control also cuts the float that shows up at speed on faster A- and B-roads.

About the Super Sport coilover

XYZ Racing’s Super Sport line is built to close the usual gap between a stiff track set-up and a car you can actually drive every day. The damper offers 36 distinct adjustment steps, wide enough to run soft for a commute over poor surfaces and firm up in a few clicks for a trackday. Ride height and damping are adjusted independently, so lowering the car doesn’t force a harsher compression rate on you as a side effect, the way it often does on a fixed-rate kit. XYZ designed the Super Sport specifically to take the harshness out of bumps and expansion joints that a stiffer aftermarket set-up usually introduces, while keeping enough composure for weekend circuit use. It’s aimed at owners who want one kit to cover both a race weekend and the rest of the week’s driving, rather than swapping dampers between the two.

Fitment for the Audi S4 B6 4WD (2003-2004)

This kit is built for the Audi S4 B6 4WD, chassis code AU17-1, across the 2003 and 2004 model years covered by this fitment. It’s specced to this quattro-equipped B6 generation’s mounting points and geometry, not the earlier or later A4 variants sold alongside it, so confirm your S4 falls within this year range before ordering.

What buyers also search for

• Audi S4 B6 quattro suspension upgrade for road and track use
• Audi S4 B6 4WD coilover damping that holds up through repeat lap sessions
• Audi S4 B6 ride height adjustment without giving up daily comfort
• Super Sport coilover options for the 2003-2004 Audi S4 B6

Configure your Audi S4 B6 4WD Super Sport kit below to set the spec for your car.