ST Suspensions | SKU: 18220832

ST Suspensions ST XTA Coilover Kit - 2006-2011 BMW 3 Series 325i 328i 330i 335i 6cyl Sedan (E90)

$1,399.00

Looking for maximum performance for your car? Our adjustable ST XTA Coilover Kit for the 2006-2011 BMW 3 Series 325i 328i 330i 335i 6cyl Sedan FWD (E90) 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 Kit 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 Coilover Kit 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 Kit 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.

Performance driving in mind

ST XTA Coilover Kit 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 more track stability and reduced bodyroll. 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 topmount 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 when the kit is installed by turning the spring plate higher or lower! NOTE: The lowering of each vehicle differs greatly with ST XTA Coilover Kit due to the type of construction. For example, older vehicles such as the Honda Civic (EJ9) can be lowered between 40-75mm with ST XTA Coilover Kit, while newer models such as the Audi S3 (8P) can be lowered between 10-40mm due to being much lower from the factory.

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.

Standard Features

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
Aluminum adjustable uniball top mounts (when possible)
Scaled camber adjustment (optionally also caster)
Externally adjustable damping
5 year limited warranty

Specifications

Part Number	18220832
Part Name	ST XTA Coilover Kit
UPC	00847691038420
Vehicle	2006-2011 BMW 3 Series 325i 328i 330i 335i 6cyl Sedan FWD (E90)
Front Lowering Rate	0.8 - 1.8 in.
Rear Lowering Rate	0.8 - 1.6 in.
Ride-Height Adjustable	Yes
Damping Adjustable	Yes
Adjustment Type	1-Way
Front Spring Rates	7.14 Kg/mm (400 lbs/in)
Rear Spring Rates	Progressive
Notes	Excluding All Models with 4-Wheel Drive.