XYZ Racing Top Sport Coilovers — Audi S4 B7 4WD 2004-2008

The B7 S4’s 4.2-litre V8 sits further forward and further over the front axle than anything else in the B7 quattro range, and the factory air of comfort in the standard suspension does that nose-heavy layout no favours once you start loading the front tyres hard into a corner. Body roll and a soft initial damper response let the car’s weight transfer lazily, which is fine on a motorway commute and a liability the moment you ask the quattro system to put that power down through a bend.

XYZ Racing’s Top Sport kit is built for owners who split their time between road and the odd trackday rather than committing to one or the other. It raises spring rate and damping over the standard setup enough to control that front-heavy V8 mass without turning the ride into something you dread on a UK B-road.

What this coilover does for your 2004-2008 Audi S4 B7 4WD

Fitted to the S4 B7 4WD, the Top Sport kit tightens the body control that the factory setup gives away to comfort, cutting the amount of front-end dive under braking and the roll that comes with unloading the inside rear tyre mid-corner. Firmer damping and a stiffer spring rate keep the contact patch working through direction changes instead of the car pitching onto its bump stops, which matters on a chassis carrying a V8 up front. The kit is set up to absorb the shock of poor surfaces and sharp edges rather than transmit them straight into the cabin, so the car settles quicker after a pothole or a compression instead of the body continuing to move once the wheel has already dealt with it. That control extends to the tyre itself: keeping the contact patch loaded more consistently through a corner is what actually lets the quattro system put power down cleanly rather than spinning up an unloaded wheel.

About the Top Sport coilover

The Top Sport line runs damping roughly 30 to 50 percent firmer than XYZ Racing’s street-oriented settings, paired with spring rates around 2kg/mm stiffer than a comfort-biased kit would use. That combination is aimed squarely at controlling body movement over rough surfaces rather than just stiffening the ride for its own sake – the goal is to stop a big hit unsettling the car after the initial impact has passed. The valving and spring rate here come directly out of XYZ Racing’s own track programme, carried down into a kit that’s still usable on the road rather than reserved for a trailer queen. It’s the setup XYZ pitches at drivers doing aggressive trackday driving one weekend and a normal commute the next, rather than a full race-only spec.

Fitment for the Audi S4 B7 4WD (2004-2008)

This kit is built for the B7-generation Audi S4 4WD, chassis code AU20-2, covering the full 2004 to 2008 production run. Confirm your car matches this chassis code before ordering, since the B7 platform spans several related Audi variants with different suspension mounting points.

What buyers also search for

• Audi S4 B7 quattro suspension upgrade for road and track use
• Audi S4 B7 coilover damping that holds up through repeated trackday sessions
• XYZ Racing Top Sport coilover options for the B7 4WD chassis
• Audi S4 B7 ride height and handling setup without losing daily usability

Configure your Top Sport kit for the S4 B7 4WD using the spec options below.