XYZ Racing Drag Racing Coilovers — Audi A4 B7 4WD 2004-2008

The B7 A4’s quattro system splits drive across all four corners from a standstill, which sounds like an advantage off the line until you watch how little weight actually sits over the rear axle before the car moves. XYZ Racing’s Drag Racing coilovers for the B7 4WD are built around that exact problem: get more mass onto the tyres doing the work in the first tenth of a second, and the AWD system stops fighting itself.

This is a launch-specific spring and damper setup, not a fast-road or circuit compromise. Ride height and corner-weight adjustment are set up to shift static and dynamic weight rearward under hard acceleration, which is what a standing-start pass actually needs from an A4 built to carry its weight nose-forward for daily quattro grip.

What this coilover does for your 2004-2008 Audi A4 B7 4WD

Fitted to a 2004-2008 A4 B7 4WD, the kit changes how quickly the chassis loads its rear tyres once the clutch or torque converter locks up. Front and rear ride height adjust independently, so you can push weight rearward at launch without turning the car into a wallowing mess once you’re up to speed. That reduces the moment where a tyre is spinning but not gripping – the gap between wheel and tarmac the vendor spec calls "idle time" – which on a heavy AWD saloon like the B7 is normally where a run gets lost. The result is a shorter, more repeatable 60-foot time, because the car is transferring load instead of fighting its own quattro-driven weight bias off the line.

About the Drag Racing coilover

XYZ Racing’s Drag Racing range is built specifically for 0-400m runs across FWD, RWD and 4WD platforms, and the B7 A4 application is set up for the quattro drivetrain rather than a generic AWD map. The core of the system is a height and preload setup that lets you deliberately shift the car’s front-to-rear weight split the instant power goes down, forcing the rear tyres into greater compression against the tarmac. That compression is what cuts wheel spin and shortens the time each tyre spends unloaded, which is the difference between a launch that hooks and one that just spins the quattro system into heat. It’s a single-purpose kit: everything in the spring rate and damper tune points at straight-line stability under launch load, not cornering compliance.

Fitment for the Audi A4 B7 4WD (2004-2008)

Built specifically for the Audi A4 B7 4WD, chassis code AU19, covering the 2004 to 2008 model years. Confirm your car is the quattro (4WD) B7 variant before ordering, as front and rear geometry differs from the front-drive-only versions of the same generation.

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Configure your Drag Racing spec for the B7 A4 below, and set your ride height to match how you’re launching it.