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Street Advanced

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

SKU: AU431C-SA

  • IncludesFull set of 4 (front + rear)
  • Spring rate (F/R)16 / 3 kg/mm
  • Top mountFront: OE (factory) mount · Rear: Iron
  • Lead time10–15 working days

Fits Audi S1 SPORTBACK 8X (Modified Rear Integrated) (Cancellation Kit for Electronic Damping) (2014-2018) chassis AU431C

Front spring rate (kg/mm)

16 kg/mm recommended

The recommended rate is the factory setup for your exact car — leave it unless a suspension specialist has specified otherwise. Recommended: 16 kg/mm. A custom rate on this axle adds £80.00.

Rear spring rate (kg/mm)

3 kg/mm recommended

The recommended rate is the factory setup for your exact car — leave it unless a suspension specialist has specified otherwise. Recommended: 3 kg/mm. A custom rate on this axle adds £80.00.

Configured price£2,590.00Inc. VAT

Lead time: 10–15 working days from payment


£2,590.00

Made to order. Full payment is taken at checkout. Production begins once payment is confirmed.

Pay by card, Apple Pay, Google Pay — or Klarna on eligible orders.

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

The S1’s party trick is squeezing quattro all-wheel drive and roughly 231bhp into an A1-sized shell, which means the factory suspension is doing a lot of work with very little wheelbase to play with. Body control on the standard set-up is a compromise between ride comfort and keeping that nose-heavy layout settled through direction changes, and it shows the moment you push past a fast-road pace. The XYZ Racing Street Advanced coilover kit for the Sportback 8X is built to close that gap without turning the car into something you dread driving to work.

This particular listing is the cancellation kit variant, specced for S1s that left the factory with electronic damping control. Instead of trying to talk to the OE damping computer, it removes that dependency entirely and hands full control to the coilover’s own valving. For an owner who wants to lower the car and stiffen the chassis without fighting factory electronics, that’s the whole reason this kit exists.

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

Dropping the ride height brings the S1’s centre of gravity down across all four corners, which matters more here than on a two-wheel-drive hatch because quattro can only put power down as well as the chassis lets it. Firming up spring and damper rates cuts the body roll that the factory set-up allows, so weight transfer under trail-braking and hard direction changes stays more predictable through the front end. With 720 damping adjustment increments to work through, you can run the car soft enough for the daily commute and then wind it up ahead of a track session without swapping parts. Because the electronic damping control is cancelled rather than worked around, there’s no factory computer second-guessing the setting you’ve chosen – what you dial in is what the car runs.

About the Street Advanced coilover

Street Advanced is the volume seller in the XYZ Racing range, refined over several seasons of development and proven through use in motorsport internationally before being brought to road-going kits. It’s built specifically to cover both ends of the enthusiast brief: a car that’s comfortable enough for normal road use but has the adjustment range to be genuinely useful on a track day. The 720-way damping adjustment is the core of that flexibility, giving a wide enough spread between soft and firm settings that the same kit can suit a commute and a circuit outing. XYZ position it as essential kit for drivers who want both pace and control rather than one at the expense of the other, and the construction reflects that dual brief rather than chasing a single extreme.

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

This kit is built for the Audi S1 Sportback, chassis code AU43-1-C, covering the 2014 to 2018 production run, in the modified rear-integrated configuration. It is specifically the cancellation kit variant for cars fitted with electronic damping control from the factory – check your S1’s original spec for electronic dampers before ordering to make sure this is the correct kit rather than the standard Street Advanced listing.

What buyers also search for

  • Audi S1 Sportback 8X coilover upgrade for road and track use
  • Audi S1 quattro suspension lowering kit with adjustable damping
  • Audi S1 8X coilovers for cars with factory electronic damping cancelled
  • Street Advanced coilover damping adjustment for the Audi S1 hot hatch
  • Audi S1 Sportback ride height and stiffness upgrade for fast road driving

Get the exact spec sorted for your S1’s chassis and electronic damping setup – configure yours below.

This is the most popular and functional product, which is developed for years by XYZ professional team.
After tested in famous worldwide races, it reaches the ultimate quality and performance.
Street Advance is made especially for normal road use or track day. It comes with 720 damping adjusting way to satisfy your request. It is indispensable equipment for drivers aspiring speed and controlling.

Top mounts included with your kit

Every XYZ Racing coilover kit ships with the upper mounts listed below for your exact chassis — no extra parts to source.

Front

  • OE (factory) mount top mountOE (factory) mountOERetains the OEM (factory) upper mount — preserves the original ride comfort, noise and vibration behaviour for a stock-like feel.

Rear

  • Iron top mountIronIRONIron upper mount — a heavy-duty housing built to take sustained load where a stronger top mount is required.
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