Suspension and Components Shocks, Struts, Coil-Overs and Components

Suspension Techniques

ST XTA Height Adjustable Coilovers 05+ BMW E90 Sedan/ E92 Coupe

$1,649.00

SKU: S03R 18220832

In Stock
In Stock
Ships by Aug 1
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

Part #: 18220832

Looking for maximum performance for your car Our adjustable ST XTA Coilover kits are the upgrade you need. All ST XTA systems are delivered with a linear race springs system, adjustable dampers, and aluminum unibal camber adjustable top mounts. ST XTA Coilover kits deliver precise adjustment to your ride height so you control the look of your car. We manufacture the adjustable spring perch made of durable and friction-optimized polyamide composite material with a stainless steel insert. Thanks to the composite material corrosion is prevented between the strut and perch ensuring long lasting height adjustability while the stainless steel insert provides strength and confidence! ST XTA Coilovers come preset to our factory recommended damper settings, the same configuration we test them at on our KW shock dynos before they go into your box. The 16 distinct clicks of adjustable rebound damping allow you to refine the driving dynamics with a simple turn of the adjustment knob. Each kit includes a detailed damper setup manual making it easy to reset to our recommended setting at any time. Whether your preference is comfort, performance, or something in between; ST XTA puts the finer details of the driving dynamics in your hands. The top mounts included with our ST XTA Coilover kits allow you to adjust the camber at the front axle to dial in aggressive wheel and tire fitment. They also allow you to maximize the tire's contact patch for driving in fast corners and any other driving scenario that demands maximum grip. Galvanized zinc coated steel struts optimize corrosion protection for long lasting use. We add a dust protection system to prevent unwanted dirt and particulate from coming in contact with the hardened chrome piston rod or getting into the valve packs. We reinforce the system with a multi-layered pressure resistant sealing package, mono block guide system and a low friction piston band which works inside the pressure resistant internal damper housing.

Features:

  • Aluminum unibal top mounts improve steering response and feedback while allowing you to dial in your camber when applicable.
  • Linear race spring system provides a consistent response while driving and makes it easy to swap rates to further personalize your setup.
  • ST XTA coilovers feature adjustable rebound damping which puts you in control of how comfortable or sporty your car feels.
  • ST coilovers are built by hand by the experts at KW in Fichtenberg, Germany. Each damper is tested on a shock dyno to verify it's making the proper forces before being put into the ST box.
  • Composite spring perch made from wear-resistant, friction-optimized polyamide composite with an embedded stainless-steel insert. The polyamide composite prevents oxidation while the stainless-steel insert maximizes strength.
  • Seamless Ride Height Adjustment - ST's composite spring perch and unique trapezoidal thread pitch make ride height adjustability a breeze so you can dial in your preferred look.
  • Elastomer Bump stop with integrated dust protection system prevents water and dirt particles reaching the piston rod and seals. The highly resilient bump stops act as dynamic load limiters while maintaining ride quality and durability.
  • Galvanized steel housing for improved resistance to corrosion.
  • Made in Germany
  • 5 Year Limited Warranty - Unlimited Mileage

ST XTA Coilovers allow you to maximize the driving dynamics of your car if you are a sporty ambitious driver. With the linear race springs, adjustable dampers, and aluminum unibal top mounts, you can dail in the cars behavior easily.

MIA's Description

For those who demand the absolute best performance comes the ST XTA coilover. The full driving behavior of your car can be adjusted using KW damper technology along with an adjustable aluminum uni-ball top mount for fine-tuning of the camber and caster! Performance driving in mind ST XTA coilovers feature KW damping technology which allows the suspension to be made either stiffer or softer depending on the driving conditions. This damping adjustment is made on the upper end of the chromed piston rod allowing the setup to be changed almost instantly. If the rebound force is increased, the car will drive with even more track stability and further reduced body-roll. If the rebound force is decreased, the car will feel more comfortable when on the move. For increased performance, the ST XTA features an aluminum adjustable top-mount allowing the camber and caster to be adjusted depending on your driving needs or vehicle setup. Easy lowering adjustment Like all ST coilovers the lowering adjustment is made via a continuous thread on the galvanized strut. This even allows the lowering to be made even when the kit is installed by turning the spring plate higher or lower! KW Engineering: Exclusive for ST suspension The high-quality ST XTA coilover is based on the twin-tube damping principle of low friction combined with pressure-resistant damper housings. Manufactured directly at KW, a mono block guide and seal package reduces the friction of the damper as well as protecting it against corrosion and dirt. Each galvanized strut is sealed multiple times to ensure maximum longevity in ALL weather conditions. - Latest damping technology for maximum longevity - Reduced system friction for effective damping adjustment - Individual lowering within the TUV -tested adjustment range - Front and rear axle (when possible) with thread adjustment - Galvanized coilover struts with additional coating for an optimized corrosion protection - Complete solution with adjustable spring plate, race spring system and bumpers with dust protection - Aluminium adjustable uni-ball top mounts (when possible) - Scaled camber adjustment- Externally adjustable damping. Suspension Techniques (ST) Coilovers are made by KW, the leading brand worldwide for height adjustable coilover systems. The ST coilover is identical in valving and technology as that of the KW Variant 1, only difference is the galvanized steel casing, opposed to the stainless steel casing of its "big brother" KW. Approximate lowering Front: 0.5"-1.5", Rear: 0.5"-1.5". 5 Year Limited Warranty to original purchaser.

Fitment

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Specifications

BrandSuspension Techniques
Part NumberS03R 18220832

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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