XYZ Racing Top Sport Coilovers — Audi S1 SPORTBACK 8X (Cancellation Kit for Electronic Damping) 2014-2018

The S1 Sportback’s factory magnetic ride is the first thing serious drivers want to bin. Audi’s quattro hot hatch arrived in 2014 with 228bhp from the EA888, a Haldex-based all-wheel-drive system, and a rear multi-link borrowed from the bigger A3 – but the electronically controlled dampers were tuned for showroom compliance, not for the kind of cornering the chassis is actually capable of. This XYZ Racing Top Sport coilover kit for the 2014-2018 Audi S1 Sportback 8X includes the cancellation harness needed to delete the OE electronic damping signal cleanly, so the ECU stops throwing faults the moment the original struts come out.

This is the spec for owners who run their S1 on a B-road in the morning and a circuit by the afternoon. The Top Sport range sits a step above XYZ’s street kits and inherits its tuning DNA from the company’s track programme, with damping and spring rates set for an aggressive driving brief rather than ride-height-only stance work.

What this coilover does for your 2014-2018 Audi S1 Sportback 8X

The Haldex S1 is light at the front by VAG standards but still nose-led, and the OE setup masks it under magnetic damping witchcraft. Swapping to the Top Sport gives you a fixed mechanical platform to read the car through – turn-in sharpens, mid-corner float disappears, and the rear axle starts behaving like the multi-link it actually is rather than a passive follower. Spring rates roughly 2kg/mm stiffer than a street kit cut bodyroll without making the car skitter on rough surfaces, while the uprated damping absorbs single hits – kerbs, expansion joints, mid-corner bumps – without rebound chatter. Brake stability improves with the reduced dive, which matters on a short-wheelbase quattro hatch that pivots quickly. Ride height is adjustable independently of spring preload, so corner-weighting on a setup pad is straightforward.

About the Top Sport coilover

Top Sport is XYZ Racing’s circuit-and-street spec, set from the team’s own track-day development work. Damping is calibrated roughly 30 to 50 per cent firmer than XYZ’s street kits, with spring rates around 2kg/mm higher to suit aggressive cornering loads while still soaking up broken Tarmac. The brief was specific: control body movement enough to put consistent load through the front tyres on a circuit, but retain enough compliance to absorb a sharp pothole without unsettling the chassis. Construction follows XYZ’s standard coilover format – adjustable height separate from preload, pillowball top mounts where the platform allows – and the cancellation harness in this kit removes the electronic damping fault codes that would otherwise flag the moment the S1’s magnetic struts are unplugged. Treat it as a track-day coilover that doesn’t punish you on the drive home.

Fitment for the Audi S1 Sportback 8X (2014-2018)

This kit is built for the AU43-C chassis S1 Sportback 8X, model years 2014 through 2018, and ships with the cancellation kit required to delete the factory electronic damping circuit. It is the correct part number for cars originally fitted with Audi’s adaptive damper option – without the harness, the dash will throw a damper warning the moment the OE struts are removed.

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Pick your ride-height and damping spec below and configure yours to suit how you actually use the car.