XYZ Racing Street Advanced Coilovers — Audi A4 B9 AVANT φ49 2016-2026

The B9 Avant carries more weight over its rear axle than the A4 saloon it shares a platform with, and that estate mass shows up first in how the standard dampers cope with a loaded boot and a spirited B-road. XYZ Racing’s Street Advanced coilover kit for the Audi A4 B9 Avant Φ49 (AU22-3, 2016-2026) replaces that compromise with 720 discrete damping settings, so the same car that ferries luggage on a Friday can be wound up for a Sunday track day.

Street Advanced sits in XYZ’s range as the everyday-usable option: full ride height adjustment plus damping control fine enough to separate a comfortable commute from a stiffer setup for a circuit outing, without swapping parts. For a B9 Avant owner running quattro or front-wheel drive through a longer wheelbase than the saloon, that range matters – the estate’s extra length changes how quickly weight transfers under trail braking into a corner.

What this coilover kit does for your 2016-2026 Audi A4 B9 Avant

Dropping the ride height and adding full damping control changes how the B9 Avant behaves under weight transfer at both ends. The estate’s added rear mass means body control off a compression, whether that’s a motorway ramp or a mid-corner bump, benefits directly from the 720-way adjustment range, letting you firm up the rear without unsettling the front end. Lower spring perches cut the centre of gravity, sharpening turn-in on the B9’s multi-link front end and reducing the float that standard dampers allow once the boot is loaded. On a quattro A4, a stiffer, height-adjustable platform also keeps the driveline geometry more consistent through hard direction changes, since less suspension travel means less variation in driveshaft angles. The net result on this specific car is an estate that corners flatter loaded than the saloon does on standard dampers, while still absorbing the daily commute.

About the Street Advanced coilover

Street Advanced is XYZ Racing’s highest-volume coilover line, refined across several product cycles and run by XYZ’s own teams in international competition before it reaches a road car. The line is built for drivers who split their time between normal road use and track days rather than committing fully to one or the other. Its signature spec is a 720-position damping adjuster, giving a far finer gradient between comfort and control than a basic click-adjustable unit, so a small turn of the collar makes a genuinely felt difference rather than an all-or-nothing jump. Construction on this Audi A4 B9 Avant application uses a 49mm strut body, sized for the extra load the estate carries over the saloon. XYZ positions Street Advanced as kit for a driver chasing both pace and control from the same set of dampers, not a trade-off between the two.

Fitment for the Audi A4 B9 Avant (2016-2026)

This kit is specced for the Audi A4 B9 Avant, chassis code AU22-3, covering the 2016 to 2026 model years. The 49mm strut body named in the kit matches the OE strut diameter on this generation’s Avant bodystyle – confirm your build date sits inside the AU22-3 range before ordering.

What buyers also search for

• Audi A4 B9 Avant coilover upgrade for road and occasional track use
• Audi A4 B9 Avant Street Advanced damping adjustment for a loaded estate
• AU22-3 chassis coilover kit with full ride height control
• Audi A4 Avant suspension setup for daily driving and B-road pace
• 720-way adjustable coilovers for Audi A4 B9 quattro and front-wheel-drive models

Spec your ride height and damping range for this exact B9 Avant fitment – configure yours below.