ST XA Coilover Suspension 2 Way Adjustable - Audi S3 8V (2013-2020)
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ST XA Coilovers - KW Quality, Adjustable Performance for the Road
Take control of your vehicle's ride height and suspension characteristics with ST XA coilovers. Developed using proven suspension technology from the KW Automotive group, the ST XA combines a fully height adjustable coilover system with 16-way rebound damping adjustment, giving you considerably more control over the way your car drives.
Product Specifications
- Lowering Front Axle: 0-30mm
- Lowering Rear Axle: 5-30mm
- Adjustment: 2 Way Adjustable (Rebound & Height)
- Material: Galvanised Steel
- In the box: 2x Front Coilover Struts, 2x Rear Height Adjustable Springs and Dampers
- Car Fitment: Audi S3 8V (2013-2020)
- Part Number: 1821000M
Product Notes
- Vehicles equipped with factory electronic damping require a deactivation kit, please select 'Cars With Electronic Dampers' to include this in delivery.

Unlike a conventional fixed damping coilover, the ST XA allows you to fine tune the rebound damping to suit your preferences. The supplied dampers feature a vehicle specific base setting, giving you a balanced starting point straight out of the box. From there, the 16-stage adjustment allows you to alter the damping characteristics towards a firmer, sportier setup or a more compliant and comfortable road going feel.
The continuously adjustable ride height allows you to fine tune your vehicle’s stance within the approved adjustment range, making it possible to achieve the look and wheel fitment you want. The adjustment system uses a durable, dirt resistant trapezoidal thread and composite spring perches with stainless steel inserts, helping maintain reliable height adjustment while offering excellent corrosion resistance.
ST XA coilovers are equipped with progressive moulded springs, providing a useful balance between comfort and handling. The initial section of the spring is comparatively soft, allowing the suspension to respond more sensitively to smaller road imperfections. As the suspension compresses further, the spring rate increases to provide greater support during harder cornering and more aggressive driving.
Durability has also been considered throughout the design. The coilover bodies feature galvanised and multi sealed steel strut housings for improved corrosion protection, while integrated dust protection helps prevent dirt and water from reaching the damper seals. Bump stops provide additional support when the suspension is subjected to heavier loads.
Key Features
- KW developed suspension technology
- Continuously height adjustable within the vehicle specific approved range
- 16-way rebound damping adjustment
- Sporty, vehicle specific damper setup
- Progressive moulded springs for a balance of comfort and handling
- Composite spring perches with stainless steel inserts
- Galvanised steel coilover housings for improved corrosion resistance
- Integrated dust protection and bump stops
- Designed for fast road and everyday driving
- Allows the driver to tailor both ride height and suspension characteristics
- Supplied with vehicle specific components and installation information
The ST XA is an ideal choice for drivers who want more control than a conventional fixed damping coilover can provide. The combination of adjustable ride height and 16-stage rebound adjustment means the suspension can be tailored to suit everything from comfortable everyday road driving to a firmer, more focused setup for enthusiastic driving.
With its vehicle specific damper calibration, progressive springs and corrosion resistant construction, the ST XA provides a versatile coilover package that combines stance, handling and adjustability in one system.