XYZ Racing Tarmac Rally Coilovers — Audi S1 SPORTBACK 8X (Modified Rear Integrated) (Cancellation Kit for Electronic Damping) 2014-2018

The S1 Sportback 8X’s quattro all-wheel-drive layout puts drive through all four corners of a car barely longer than a supermini, and on loose or broken tarmac that combination punishes a soft suspension setup fast. Audi built the rear end to carry the AWD driveline, and where this fitment specifies a cancellation kit for electronic damping, it’s because the factory adaptive dampers need to be electronically told they’re gone before a set of passive coilovers can do their job properly.

XYZ Racing’s Tarmac Rally coilover is built for exactly that scenario: sealed-stage pace over surfaces that alternate between smooth blacktop and axle-jarring compressions inside the same corner. It replaces the S1’s factory damping – electronic or otherwise – with a fixed, rally-tuned platform designed to keep the car’s contact patches loaded through the worst of it.

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

Fit this to a 2014-2018 S1 Sportback and the biggest change you’ll feel is how the car settles after a compression instead of skipping across it. The Tarmac Rally’s damping is calibrated to absorb the impact of broken or uneven pavement without passing all of it straight into the chassis, so the quattro system keeps its grip on exit rather than fighting a car that’s still recovering from the last bump. Big hits – the kind that unsettle a stock S1 mid-corner – are suppressed rather than transmitted, which keeps the tyre’s contact patch and traction consistent through a stage rather than just for one clean lap of it. Ride height is also adjustable, so you can trim the S1’s stance to suit a specific stage’s surface rather than living with one factory compromise setting.

About the Tarmac Rally coilover

XYZ Racing built the Tarmac Rally around one job: soak up what a rally stage throws at a car without losing the vehicle’s composure. The damper absorbs the shock of uneven pavement and big hits at speed, controlling body movement so the tyre stays loaded and keeps its traction rather than skipping over the surface. That control is what translates into the stability drivers actually feel through a fast, committed stage – a car that turns in predictably instead of one that’s still reacting to the last bump. The valving and spring rates aren’t generic track settings either; they’re drawn directly from XYZ’s own Tarmac Rally programme, tuned against the same surface transitions – smooth tarmac into broken, cambered or cut-up sections – that a rally stage produces across a full run, not a closed circuit.

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

This kit is built for the Audi S1 Sportback 8X, chassis code AU43-1-C, covering the 2014-2018 model years with the modified rear end integrated for the quattro driveline. Because this variant runs factory electronic damping, the kit includes the cancellation module needed so the car’s systems stop expecting an adaptive damper signal that’s no longer there.

What buyers also search for

• Audi S1 Sportback 8X coilovers for tarmac rally and fast road use
• Audi S1 quattro suspension upgrade with electronic damping cancellation kit
• AU43-1-C coilover kit for rally-spec ride height adjustment
• Audi S1 Sportback 8X 2014-2018 Tarmac Rally damper setup

Configure the ride height and cancellation kit option for your S1 Sportback 8X below.