XYZ Racing Drag Racing Coilovers — Audi S4 B5 4WD 1997-2002

The B5 S4’s quattro layout splits torque across four contact patches, which is exactly why a straight-line launch on this car is a weight-transfer problem before it’s a power problem. Get the 2.7-litre biturbo V6’s torque down cleanly through both axles at the moment the clutch bites, and the car leaves the line hard. Get it wrong and that AWD advantage turns into wheel hop and a slow 60-foot time.

XYZ Racing’s Drag Racing coilover kit for the Audi S4 B5 4WD is built around that exact problem. It’s a strut-and-spring platform tuned specifically for 0-400m runs rather than circuit lap times, with the ride height and spring behaviour set up to load the drive tyres the instant the car moves, not several tenths later.

What this coilover kit brings to your build

On a B5 S4, front-to-rear weight bias at launch determines how much of that quattro torque split actually turns into forward motion instead of tyre spin. This kit lets you set ride height independently front and rear, so you can shift static weight onto the axle doing the most work under initial launch load rather than leaving the factory-spec balance to fight the AWD system. Lowering the rear and adjusting front ride height changes how quickly load transfers back under acceleration, which shortens the time the tyres spend under-loaded and spinning rather than gripping. The result on the strip is a shorter 60-foot and a more consistent launch run after run, because the suspension is doing the same job the driver used to have to compensate for with clutch and throttle technique alone.

About the Drag Racing coilover

XYZ Racing developed this range specifically for 0-400m drag work across front-wheel, rear-wheel and four-wheel-drive platforms, which is why the front/rear ride height adjustment on the S4 B5 4WD kit is set up around the car’s driven wheels rather than a generic ride-height spec. The design lets you shift front and rear weight instantly relative to how the quattro system sends torque to the road at launch, forcing the driven tyres into a greater contact-patch compression at the moment power hits. That compression cuts the amount of time a driven wheel spends spinning free before it hooks up, and it’s that reduced idle time that keeps the car stable and straight under hard acceleration instead of stepping sideways.

Fitment for the Audi S4 B5 4WD (1997-2002)

This kit is specified for the Audi S4 B5 in its quattro all-wheel-drive configuration built between 1997 and 2002, chassis code AU14-1. Confirm your car sits within that production window before ordering, as the B5 platform carries different suspension mounting points to the later B6/B7 S4.

What buyers also search for

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Set your front and rear ride height to match how you launch this car, then configure yours below.