XYZ Racing Tarmac Rally Coilovers — Audi A4 B9 AVANT φ49 (Cancellation Kit for Electronic Damping) 2016-2026

The B9 Avant carries more weight over its rear axle than the equivalent saloon, and on cars specified with Audi’s electronic adaptive dampers, that mass has been controlled by a control unit this kit is built to remove from the equation entirely. The φ49-strut Tarmac Rally coilover ships with the cancellation kit needed to delete the factory electronic damping signal, so the dash stops hunting for a sensor that no longer exists and ride control passes instead to manually adjustable dampers set up for stage work rather than a comfort-biased daily commute.

Tarmac Rally is XYZ Racing’s sealed-stage spec, built to absorb compressions and crests taken at speed on closed public tarmac rather than a groomed circuit surface. On the A4 B9’s quattro platform, that translates into damping that keeps the nose settled through fast direction changes while the rear end, loaded with wagon cargo and a passenger or co-driver, stays composed over the broken camber and mid-corner bumps a stage road throws up that a track kerb simply doesn’t replicate.

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

With the electronic damping cancellation kit fitted, the car no longer fights itself between a factory control module and an aftermarket damper; you get one damping system, not two arguing over the same corner. Across uneven pavement and big compressions, the Tarmac Rally kit absorbs the jolt rather than passing it straight into the chassis, which keeps the tyre in contact with the road surface and the quattro system able to actually put its power down rather than managing wheel hop. That composure carries through direction changes too: the Avant’s estate-length rear overhang settles rather than pattering over broken surfaces, which is what lets you carry speed into the next section instead of backing off to let the car catch up.

About the Tarmac Rally coilover

XYZ Racing built the Tarmac Rally line specifically to deal with uneven, broken pavement rather than a smooth apex kerb, and the damping curve reflects that brief: it takes the edge off sharp compressions and big hits so the chassis body doesn’t get thrown around mid-corner, and keeps the contact patch loaded enough that traction doesn’t drop away the instant the road gets rough. The tuning behind it isn’t generic road-spec damping softened for comfort; it comes directly from XYZ’s own tarmac rally programme, where stability under repeated hard compressions matters more than outright ride quality. On the B9 Avant that means a setup calibrated for a heavier, longer-wheelbase quattro estate rather than a lighter hatchback platform.

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

This kit is built for the AU22-3-C chassis, covering B9-generation A4 Avant models from 2016 through to 2026 with the φ49 strut specification. It is specifically the cancellation-kit variant for cars fitted with Audi’s electronic adaptive damping from the factory, and includes the components needed to disable that system cleanly rather than leaving it partially active.

What buyers also search for

• Audi A4 B9 Avant coilovers with electronic damping cancellation kit
• Audi A4 B9 rally suspension for closed-road tarmac stages
• Adjustable damping for A4 B9 Avant quattro estate weight transfer
• AU22-3-C chassis coilover fitment for Audi A4 B9

Spec your φ49 Tarmac Rally kit for the B9 Avant and configure yours below.