XYZ Racing Tarmac Rally Coilovers — Audi TT 8S 4WD φ55 (Modified Rear Integrated) (Cancellation Kit for Electronic Damping) 2015-2026

The TT 8S’s transverse Haldex quattro layout keeps this compact coupe planted through loose and mixed-grip corners, but the factory adaptive damping fitted to many 8S cars actively fights any attempt to run a fixed, rally-tuned spring and damper set underneath it. XYZ Racing’s Tarmac Rally coilover for the Audi TT 8S 4WD φ55 solves that conflict directly – the kit includes a cancellation loom for the electronic damping control unit, so the car’s ECU stops hunting for a magnetic-ride signal that no longer exists.

This is a coilover built around a sealed-stage tarmac rally brief, aimed at TT 8S owners running closed stages or stage-simulation events rather than fast-road comfort driving. The rear uses an integrated shock-and-spring assembly to suit the 8S’s multi-link rear end, matched front to rear to keep the quattro system’s traction split intact under hard acceleration out of a hairpin.

What this coilover does for your 2015-2026 Audi TT 8S 4WD φ55 (Modified Rr Integrated) (Cancellation Kit for Electronic Damping)

Fit this kit and the TT 8S stops relying on a factory damping strategy tuned for wet B-roads, running instead on a setting calibrated from XYZ Racing’s own tarmac rally programme. Uneven, patched stage surfaces get absorbed rather than transmitted straight through the chassis, so the front axle stays loaded and the tyres keep finding grip instead of skipping over broken tarmac. The shock body stays controlled under repeated big hits, which matters when the same compromised section of stage comes round again. With the cancellation kit installed, there’s no dashboard fault warning fighting the new setup, and the AWD system gets a settled platform to put power down through the exit of a corner rather than a nervous one hunting for a damping signal that isn’t there.

About the Tarmac Rally coilover

XYZ Racing’s Tarmac Rally line is built specifically for sealed-stage and mixed-surface rally use, where the road underneath rarely stays flat for more than a few metres. The damper and spring rates are set to soak up the impact of broken or uneven pavement without kicking the chassis off line, and to control the bigger hits – potholes, camber changes, patched repairs – without letting the shock body get out of shape. That control is what keeps the tyre’s contact patch loaded through a hit rather than skating across it, which is where the actual traction gain comes from. Every valving setting in this kit is drawn from XYZ Racing’s own tarmac rally experience rather than a generic fast-road base curve, so the compression and rebound behaviour reflects stage running, not showroom testing. The result is a chassis that stays stable and predictable when the surface underneath it isn’t.

Fitment for the Audi TT 8S 4WD φ55 (Modified Rr Integrated) (Cancellation Kit for Electronic Damping) (2015-2026)

This kit is built to the AU47-1-C chassis code, covering the Audi TT 8S in 4WD φ55 guise across the 2015 to 2026 production run. It’s specified for cars with the Modified Rr Integrated rear shock arrangement, and includes the cancellation kit required on TT 8S models fitted with electronic damping control from the factory.

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Spec on this kit runs down to the AU47-1-C fitment and the electronic damping cancellation loom, so pick your Tarmac Rally setup for the TT 8S and configure yours below.