Eurozone Tuning

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ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers
ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers
ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers
ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers
ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers
ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers
ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers
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ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers

$ 1,399.00
EZT Direct Ship from the manufacturer
Ships from the manufacturer
Direct Ship
Shipped directly from the manufacturer to your address. Most orders ship the next business day, subject to manufacturer availability.
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Shipping info

Shipping info

Processing Time: If the kit is in stock, allow 1-2 business days lead time before the kit ships.

Special order kits may have a lead time of up to 6 business days.

Custom built items have a lead time of 2 to 5 weeks in most circumstances.

Availability: Worldwide shipping is available for most items.

Airbags can only be shipped within the Continental US.

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ST XA Coilovers for 2018+ Audi A4/S4/A5 (B9) Quattro w/o Electronic Dampers
$ 1,399.00

ST XA Coilover Kit for 2018+ Audi A4/S4/A5 (B9) Sedan Quattro (Without Electronic Dampers)

At Eurozone Tuning, we are proud to offer premium suspension solutions tailored to enthusiasts. The ST XA Coilover Kit for the Audi A4, S4, and A5 (B9) Sedan Quattro is an excellent upgrade for drivers seeking precise ride height adjustment, enhanced handling, and customizable rebound damping. Developed with KW’s advanced damping technology, this kit delivers exceptional performance for both street and spirited driving.

Why Upgrade?

The factory suspension on the Audi B9 platform is designed for versatility but may lack the adjustability and sharp handling desired by enthusiasts. The ST XA Coilover Kit allows you to lower your vehicle’s center of gravity, reduce body roll, and fine-tune rebound damping for a sportier or more comfortable ride—all while maintaining everyday drivability.

Key Features:

  • Height Adjustable: Achieve the perfect stance with precise lowering adjustments:
    • Front Lowering: 0.8" - 1.8" (20mm - 45mm)
    • Rear Lowering: 0.8" - 1.8" (20mm - 45mm)
  • 16-Click Rebound Damping Adjustment: Fine-tune your suspension setup for comfort or sportiness with simple adjustments.
  • Composite Spring Perch: Made from friction-optimized polyamide composite material with a stainless steel insert to prevent corrosion and ensure long-lasting height adjustability.
  • Twin-Tube Technology: Reduces chassis vibrations and enhances driving dynamics by minimizing damping input reactions.
  • Galvanized Zinc-Coated Steel Struts: Provides excellent corrosion resistance for long-lasting performance.
  • TÜV Approved: Meets stringent German safety and quality standards.
  • Complete Kit: Includes height adjustment tools, dust protection, bump stops, and a detailed damper setup manual.

Vehicle Fitment:

  • Make: Audi
  • Models:
    • Audi A4 (B9) Sedan Quattro (2018+)
    • Audi S4 (B9) Sedan Quattro (2018+)
    • Audi A5 (B9) Sedan Quattro (2018+)
  • Notes:
    • This kit is NOT compatible with vehicles equipped with factory electronic dampers.
    • Fits vehicles with a front axle clamp diameter of 50mm only.

The Eurozone Tuning Advantage

At Eurozone Tuning, we don’t just sell parts—we provide expertly curated solutions designed to enhance your car’s performance. The ST XA Coilover Kit is trusted by enthusiasts worldwide for its ability to deliver race-inspired handling dynamics while maintaining everyday comfort. Whether you're upgrading for style or performance, this kit is designed to exceed expectations.

If you’re ready to transform your Audi’s suspension, order the ST XA Coilover Kit today and experience the difference!

Product Details:

  • SKU/Part Number: STS182100AV
  • Adjustment Type: Height & Rebound Adjustable
  • Material: Galvanized Zinc-Coated Steel
ST coilovers are an excellent option for anyone looking to lower their car and improve handling without sacrificing ride comfort. They offer a perfect balance between everyday drivability and performance, all at a great price point. Plus, they’re highly adjustable, making it easy to dial in the perfect stance and feel for your car. Quick breakdown: X has no rebounding adjustment, XA has rebounding adjustment, and XTA has rebounding adjustment with more track geared valving.
Warranty & Product Support Coverage for manufacturing defects, with help from EZT when you need it.

Eurozone Tuning

  • EZT-Branded Kits: 6 months for repair or replacement due to manufacturing defects. Improper installation, accidents and misuse are excluded.
  • EZT Carbon Edition Steering Wheels: 1 year for workmanship. Physical misuse, harsh-environment damage and improper installation are excluded.

Brakes

  • Brembo: 24-month limited warranty on eligible U.S. purchases from authorized sellers.
  • DFC: 12 months / 12,000 miles, whichever comes first. Licensed professional installation and normal street use are required.
  • PowerStop: Standalone calipers: 90 days / 3,000 miles, whichever comes first. Complete brake-kit coverage varies by product line.
  • SHW Performance: Contact us for the warranty terms applicable to your specific part.
  • Porterfield: Racing and competition parts carry no manufacturer warranty. Contact us about street-pad defect concerns.

Exhaust, Cooling & Fluids

  • AWE: Limited lifetime coverage on exhaust tubing, welds and flex sections. Mechanical valves: 3 years. Valve motors, electronics, catalysts, intakes and intercoolers: 1 year. Tip coverage varies by finish.
  • Milltek: Limited lifetime coverage on eligible exhaust components. Catalysts and downpipes: 2 years / 80,000 km. Electronics: 2 years. Valve-equipped components and other exceptions follow the applicable product and regional terms.
  • ZAC Motorsport: 2 years on standard products. Custom/made-to-order items, wheels and brake components are excluded. Tuning and built drivetrain products have separate terms.
  • CSF: 2-year limited warranty on eligible high-performance cooling products under normal use.
  • Motul: Contact us promptly about leaking, damaged or suspected defective products. Keep the packaging and batch information for review.

Suspension

  • KW: Limited lifetime coverage on eligible street suspension systems. Accessories and other product lines have separate terms.
  • ST: Coilovers: 5 years. Other components have different coverage periods.
  • Eibach: Eligible springs and sway bars: 5 years. Listed shocks, dampers and truck coilovers: 2 years. Listed accessories and wear parts: 1 year. Coverage depends on the product line.
  • Öhlins: Automotive Road & Track: 2 years, excluding finish. Racing applications are excluded.
  • Bilstein: Limited lifetime coverage on many eligible North American products. Certain product lines have shorter terms.
Need to start a claim?

Email support@eurozonetuning.com with your order number, photos or video, mileage since installation and a description of the issue. Keep the product and proof of purchase. Contact us before returning parts.

Coverage is generally for the original purchaser and is subject to inspection and the applicable warranty terms. Normal wear, improper installation, misuse, modifications and racing are commonly excluded. Labor, installation, shipping and related expenses are not covered unless expressly included in the applicable policy.

Mixed-brand kits follow each component manufacturer’s warranty; they do not automatically receive the EZT-branded kit warranty. Product-specific terms, purchase date and region control. This summary does not limit rights provided by applicable law. For brands not listed, contact us for the relevant terms.

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