ST Suspensions XTA PLUS 3 COILOVER KIT 08-13 BMW 1 Series E82 Coupe 128i /135i (ADJUSTABLE DAMPING WITH TOP MOUNTS) - sts1820220839

The ST Suspensions ST XTA Plus 3 Coilover Kit is engineered to deliver maximum performance for both spirited road driving and demanding track use. Designed with advanced KW suspension technology, this system provides extensive damping adjustability and robust construction to handle a wide range of vehicle setups and driving conditions.

From the factory, the ST XTA Plus 3 coilover kit is equipped with KW twin-tube dampers that feature independent adjustment for high-speed compression, low-speed compression, and rebound damping. With 24 clicks of adjustment for both high- and low-speed compression and 18 clicks of rebound adjustment, this suspension system allows precise tuning to suit changes such as aftermarket roll cages, welded cages, spherical bushings, or altered wheel and load configurations.

Ride height adjustment is handled through a continuous threaded galvanized strut, allowing lowering adjustments to be made even after installation by simply turning the spring plate. Lowering range varies depending on vehicle construction. Each kit includes race springs, elastomer bump stops with dust protection, and solid aluminum uniball top mounts that provide camber adjustment when required by the specific application.

Manufactured directly by KW, the ST XTA Plus 3 is based on a low-friction twin-tube damping principle combined with pressure-resistant damper housings. A mono-block guide and seal package reduces internal friction while protecting the dampers against corrosion and dirt. Each galvanized strut is sealed multiple times to ensure long-term durability and consistent performance in all weather conditions.

Key Features

• Latest 3-way adjustable damping technology for maximum performance and longevity

• Independent high-speed compression, low-speed compression, and rebound damping adjustment

• Reduced system friction for precise and effective damping control

• Individual ride height adjustment within the tested lowering range

• Threaded front and rear axle adjustment when applicable

• Galvanized steel coilover struts with additional corrosion-resistant coating

• Complete suspension solution including adjustable spring plates

• Race spring system included

• Elastomer bump stops with integrated dust protection

• Solid aluminum uniball top mounts with camber adjustment depending on application

• Includes parts approval certificate

Damping Adjustment Specifications

• 18 clicks of low-speed rebound damping

• 24 clicks of low-speed compression damping

• 24 clicks of high-speed compression damping

Technical Specifications

• Version: XTA Plus 3

• Damping Adjustment: Rebound and Compression

• Damper Design: Twin-Tube

• Material: Galvanized Steel

Vehicle Fitment

BMW 1 Series Coupe (E82) – Rear-Wheel Drive

2008 BMW 128i Base Coupe
3.0L L6 N51B30A GAS – 172 kW – 2996 ccm – RWD

2008 BMW 128i Base Coupe
3.0L L6 N52B30A GAS – 172 kW – 2996 ccm – RWD

2008 BMW 135i Base Coupe
3.0L L6 N54B30A GAS – 224 kW – 2979 ccm – RWD

2009 BMW 128i Base Coupe
3.0L L6 N51B30A GAS – 172 kW – 2996 ccm – RWD

2009 BMW 128i Base Coupe
3.0L L6 N52B30A GAS – 172 kW – 2996 ccm – RWD

2009 BMW 135i Base Coupe
3.0L L6 N54B30A GAS – 224 kW – 2979 ccm – RWD

2010 BMW 128i Base Coupe
3.0L L6 N51B30A GAS – 172 kW – 2996 ccm – RWD

2010 BMW 128i Base Coupe
3.0L L6 N52B30A GAS – 172 kW – 2996 ccm – RWD

2010 BMW 135i Base Coupe
3.0L L6 N54B30A GAS – 224 kW – 2979 ccm – RWD

2011 BMW 128i Base Coupe
3.0L L6 N51B30A GAS – 172 kW – 2996 ccm – RWD

2011 BMW 128i Base Coupe
3.0L L6 N52B30A GAS – 172 kW – 2996 ccm – RWD

2011 BMW 135i Base Coupe
3.0L L6 N55B30A GAS – 224 kW – 2979 ccm – RWD

2012 BMW 128i Base Coupe
3.0L L6 N51B30A GAS – 172 kW – 2996 ccm – RWD

2012 BMW 128i Base Coupe
3.0L L6 N52B30A GAS – 172 kW – 2996 ccm – RWD

2012 BMW 135i Base Coupe
3.0L L6 N55B30A GAS – 224 kW – 2979 ccm – RWD

2013 BMW 128i Base Coupe
3.0L L6 N51B30A GAS – 172 kW – 2996 ccm – RWD

2013 BMW 128i Base Coupe
3.0L L6 N52B30A GAS – 172 kW – 2996 ccm – RWD

2013 BMW 135i Base Coupe
3.0L L6 N55B30A GAS – 224 kW – 2979 ccm – RWD

2013 BMW 135is Base Coupe
3.0L L6 N55B30A GAS – 224 kW – 2979 ccm – RWD