XYZ Racing Pro Rally Coilovers — Audi S1 SPORTBACK 8X (Modified Rear Integrated) 2014-2018

The Audi S1 Sportback 8X pairs a compact quattro platform with a short wheelbase, the same combination that made the car a natural donor for serious rallycross and rally builds during its 2014-2018 run. Getting that all-wheel-drive layout to work over broken gravel or snow depends on the rear end being built to take it, which is why this Pro Rally kit is matched specifically to cars whose rear chassis has already been modified for an integrated damper mount rather than left on the stock subframe pickup points.

This is not a fast-road spring-and-shock upgrade wearing a rally badge. It is the coilover half of a professional-grade rally build, developed for top-flight rally competition where the S1’s small footprint and quattro traction are assets only if the suspension can absorb repeated hard landings without the geometry moving around underneath the car.

What this coilover does for your 2014-2018 Audi S1 Sportback 8X (Modified Rr Integrated)

With the rear end modified for integrated mounting, the damper can sit further into the chassis structure than a bolt-in setup allows, which keeps the mounting points rigid when a gravel stage throws the S1’s quattro system into a full-bore compression over a crest. That rigidity matters on a car this light and this short: without it, the rear axle can start to move independently of the body mid-corner, exactly when the driver is relying on the quattro system to put power down cleanly out of a hairpin. The kit is built around ride height and damping control suited to loose-surface work rather than tarmac, giving the S1 the travel to keep the tyres loaded through washboard sections and landing zones instead of skating across them. For an owner who has already committed to the rear chassis modification, this is the coilover spec that makes that work pay off on the stage rather than just on paper.

About the Pro Rally coilover

XYZ Racing splits its gravel and snow suspension into two distinct approaches. The first bolts directly to the original chassis and suits an amateur-level rally car built with minimal fabrication. The second, and the one this kit is engineered around, is built for cars whose bodywork has already been modified to take an integrated damper mount – a more involved install, but one that lets the suspension work as part of the reinforced structure rather than against it. That second, professional route is what the Pro Rally line for the S1 Sportback 8X is built for: a coilover set up to cope with the repeated big hits of top-flight rally competition rather than road-going comfort, with the adjustment range and construction aimed at teams and drivers who are building the car to compete, not to commute.

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

This kit is built for the Audi S1 Sportback 8X, chassis code AU43-1, across its 2014-2018 production run, and is specifically matched to cars where the rear chassis has already been modified for an integrated damper mount rather than the standard subframe pickup. Confirm your car has had this rear-end modification carried out before ordering, as this kit is not intended for an unmodified 8X rear end.

What buyers also search for

• Audi S1 Sportback quattro rally coilover setup for gravel and snow stages
• Audi S1 AU43-1 suspension for a modified, rally-spec rear end
• Pro Rally coilover kit for competition-level Audi S1 builds
• Audi S1 Sportback 8X suspension upgrade for top-flight rally competition

Confirm your S1’s rear-end modification matches this kit’s integrated mounting, then configure yours below.