ST Suspensions 18220857 XTA Coilover Kit for 2008–2013 BMW M3 E90 E92 E93 4.0L For Sale

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Part Brand: ST Suspensions

Part Number: 18220857

• 2008–2013 BMW M3 (Base, E90 Sedan, 4.0L V8 S65B40A), RWD
• 2008–2013 BMW M3 (Base, E92 Coupe, 4.0L V8 S65B40A), RWD
• 2008–2013 BMW M3 (Base, E93 Convertible, 4.0L V8 S65B40A), RWD

• Compatible with both standard and EDC-equipped vehicles — vehicles with EDC require a separate EDC deactivation kit (KW Part No. 68510119, sold separately)
• Does not fit any non-M3 E90/E92/E93 3 Series variants
• Wheel spacers may be required for proper OEM wheel and tire clearance

• 18 distinct clicks of externally adjustable rebound damping via top of chromed piston rod
• Solid aluminum uniball top mounts for direct suspension connection and camber/caster adjustability
• KW twin-tube damper technology engineered for maximum longevity and reduced friction
• Linear race springs front with progressive rear for balanced street and track performance
• Galvanized struts with additional corrosion-resistant coating for all-weather durability
• Continuous thread height adjustment — can be set even with kit fully installed
• Monoblock guide and multi-lip seal package to protect against dirt and corrosion
• Backed by ST Suspensions 5-Year Unlimited Mileage Warranty

• Lowering Range Front: 0.4\"–1.6\" (10–40mm)
• Lowering Range Rear: 0.2\"–1.4\" (5–35mm)
• Spring Rate Front: 400 lbs/in (linear)
• Spring Rate Rear: 685 lbs/in (progressive)
• Damping Adjustment: 18-click rebound (external)
• Top Mount: Solid aluminum uniball (camber/caster adjustable)
• Strut Finish: Galvanized with additional protective coating
• Damper Type: KW twin-tube
• Position: Front and Rear
• Drivetrain: RWD
• Platform: BMW M3 E90 / E92 / E93

• 2x Front Coilover Strut Assemblies
• 2x Rear Coilover Shock Assemblies
• 4x Aluminum Uniball Top Mounts
• 2x Linear Front Race Springs
• 2x Progressive Rear Race Springs
• 4x Adjustable Spring Perches
• 4x Elastomer Bump Stops with Dust Boots
• 1x Set of Mounting Hardware
• 1x Damper Setup Manual

The ST Suspensions 18220857 XTA Coilover Kit is engineered specifically for the 2008–2013 BMW M3 across all three body styles — E90 Sedan, E92 Coupe, and E93 Convertible. Built on KW twin-tube damper technology, the XTA delivers 18 clicks of externally adjustable rebound damping that can be tuned on the fly at the top of the chromed piston rod. Tightening the rebound increases track stability and reduces body roll; opening it softens the ride for daily driving. Solid aluminum uniball top mounts allow precise camber and caster adjustment to optimize tire contact patch for aggressive driving scenarios.

Height is adjustable via a continuous thread on the galvanized strut body, operable even with the kit fully installed. The front 400 lbs/in linear spring rate combines with a stiffer 685 lbs/in progressive rear to deliver sharp, balanced response suited to the M3\'s high-revving V8 character. Vehicles equipped with factory EDC electronic damper control are supported, but require a separate KW EDC deactivation kit (Part No. 68510119) for proper installation.

*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.

· · · SHIPPING · · ·

• Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
• Canada customers - If does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.

· · · RETURNS · · ·

• Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.

• Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
• Any returns received installed, mounted, used or missing components will be subject to return fee\'s.

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