XYZ Racing Racing Spec Coilovers — Audi A8L 4WD (OE FOR AIR STRUT) 2010-2017

The D4 A8L is the long-wheelbase, air-sprung executive saloon that was never meant to see a kerb at Cadwell, let alone Snetterton at full pace. Strip out the factory four-corner air struts on a 4WD car and you are looking at a 2-tonne quattro chassis with a 130mm wheelbase stretch over the standard A8, riding on damper hardware that has to control a nose heavy with a V8 or W12 sat ahead of the front axle line. The Racing Spec coilover replaces that air system with a proper motorsport-grade damper designed around circuit work, not boardroom comfort.

For owners running a D4 A8L on track – a rare build, but it happens with the W12 and 4.0 TFSI cars – the Racing Spec is the only kit in the XYZ range that has the damping authority to keep this much mass composed through fast direction changes and heavy braking zones.

What this coilover does for your 2010-2017 Audi A8L 4WD

The big quattro saloon’s air struts give up under sustained load – the bags overheat, ride height drifts, and the chassis starts to wallow long before the tyres do. The Racing Spec swaps that thermal liability for a stiff, predictable damper platform that holds geometry lap after the next lap. You get true ride-height adjustment instead of a software-controlled compromise, spring rates chosen for the weight you actually carry, and a damper curve developed in WTCC competition rather than tuned for autobahn isolation. On a 4WD A8L that means the front axle stays planted under turn-in rather than pushing wide on the long wheelbase, and the rear stops squatting under throttle on corner exit. Brake stability improves the moment the air struts come off the car – the nose stops diving into ABS intervention zones it never needed to enter.

About the Racing Spec coilover

Racing Spec is XYZ Racing’s circuit-only damper, developed directly through participation in WTCC and built around the data that comes back from competition use. It is not a fast-road kit with stiffer springs – it is a separate product, with damping characteristics chosen for race pace and the heat cycling that comes with it. For cars running aggressive upgrades or competing in A-class series, XYZ build custom shock absorbers to order: you supply the upgrade list, the circuits you intend to run, and the kit is specified around that brief rather than against a generic catalogue figure. On a D4 A8L this matters because the platform sits outside any normal motorsport homologation, so the off-the-shelf valving is a starting point – the bespoke route is genuinely available if the build warrants it.

Fitment for the Audi A8L (2010-2017)

This kit is built for the D4 long-wheelbase A8L 4WD chassis (AU49) running factory air struts at all four corners, model years 2010 through 2017. The Racing Spec replaces the entire air-suspension system – you will need to disable the air management module after install.

What buyers also search for

• Audi A8L D4 coilover conversion from air suspension for track use
• Audi A8L 4WD damper upgrade for circuit work and time attack
• D4 A8L W12 and 4.0 TFSI suspension setup for fast-road and track
• Custom-valved coilovers for heavy quattro saloons on UK circuits
• Audi A8L long-wheelbase chassis control without factory air struts

Configure your Racing Spec kit below – if your D4 A8L is running aggressive engine or aero upgrades, flag it on the spec sheet and the damper can be custom-valved to your build.