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

If you're looking to dial in the stance and handling of your 2017-2023 Audi A4 Quattro, S4, or A5 Quattro (B9 chassis, without electronic dampers), the ST XA Adjustable Coilover kit is a solid option. This system lets you precisely adjust both your vehicle's ride height and the damping characteristics, giving you control over how your car feels on the road. You can achieve a lower, more aggressive look while also refining the driving dynamics for better road control, all without making the ride uncomfortable.

ST Suspensions builds these coilovers with durability and adjustability in mind. The spring perches are made from a tough, friction-optimized polyamide composite with a stainless steel insert. This combination prevents corrosion between the perch and the strut body, ensuring that you can adjust your ride height for years to come. The galvanized zinc-coated steel struts offer good corrosion protection, and ST includes an integrated dust protection system to keep dirt and water away from the piston rod and seals. Inside, the dampers are built by hand at KW in Germany and are tested on a shock dyno before shipping. You get 16 distinct clicks of rebound damping adjustment, allowing you to easily tune the suspension's response from comfort-oriented to sporty. A detailed manual is included to help you set them up.

This kit is designed to fit your specific Audi model and includes everything needed to get the ride height and damping adjusted. The elastomer bump stops work with the dust protection system to limit suspension travel dynamically while maintaining ride quality. With a 5-year limited warranty and being made in Germany, you can be confident in the build quality.