ST 18220857 Coilover Kit ST XTA BMW M3 (E90,E92); (M390, M3) 09/07-

ST 18220857 Coilovers ST XTA galvanized steel (adjustable damping with top mounts)

The ST suspensions XTA coilovers are designed for applications requiring maximum adjustability and performance. Developed with KW Automotive technology, the system combines adjustable rebound damping with aluminum uniball top mounts, allowing precise tuning of camber and caster for optimized handling characteristics.

Damping adjustment is performed at the top of the piston rod, enabling quick changes between a firmer setup for improved track stability and reduced body roll, or a softer configuration for increased comfort. The addition of adjustable top mounts enhances front axle geometry tuning, making the system suitable for performance-oriented driving and track use.

Ride height is adjusted via a threaded galvanized strut, allowing continuous lowering within the approved adjustment range, even after installation. The twin-tube damper design features low-friction internal components and pressure-resistant housings, ensuring consistent damping performance and durability in various operating conditions.

• Adjustable rebound damping with external control
• Aluminum uniball top mounts for camber and caster adjustment
• Threaded ride height adjustment on galvanized coilover struts
• Twin-tube damper construction with reduced internal friction
• Corrosion-resistant design with multi-layer sealing for long service life
• Complete kit including springs, adjustable perches, and dust protection components

Specifications:

• Product Line: Street Performance
• Version: XTA
• Damping adjustment: Rebound adjustment
• Material: Galvanised steel
• Adjustment FA/RA: Thread/Thread
• Vehicle has electronic damper control: yes
• Approval: Parts type approval

Part numbers: 18220857, 18220867

Special order: imported to order. Contact us for price and availability.