Fitment Information

• BMW 435i xDrive Coupe F32 N55 3.0L 6-cylinder (2014, 2015, 2016)
• BMW 440i xDrive Coupe F32 B58 3.0L 6-cylinder (2017, 2018, 2019, 2020)

Fitment Note: xDrive AWD models only. Does not fit RWD F32 models.  For vehicles optionally equipped with Electronic Damper Control (EDC), the EDC system must be deactivated prior to installation. KW part number 68510301 is the required EDC cancellation kit and is sold separately.

Specs & Features

• Lowering Range:
  • Front: 1.2-2.4" / 30-60mm
  • Rear: 1.4-2.4" / 35-60mm
• Spring Rates:
• Front: Progressive
• Rear: 630

• Includes a full set of 4 adjustable coilovers
• Individual lowering within the tested adjustment range
  
• Front and rear axle thread adjustment (when possible)
  
• Galvanized coilover struts with additional coating for optimized corrosion protection
  
• Complete solution with adjustable spring perch, multi-coated spring system and dynamic elastomer bump stops with dust protection
  
• Powerful twin-tube dampers with high-quality components for maximum longevity
  
• Backed by ST suspension's 5 Year Unlimited Mileage Warranty
  

This kit is the ST X fixed-damping line, meaning there is no rebound or compression adjustment knob. Ride height is the only field-adjustable parameter. For F32 buyers who want damping adjustability, the ST XA (part number 1822000S) is the adjustable-damping alternative.  This kit also fits the BMW 335i xDrive and 340i xDrive F30 sedan, and the 435i xDrive and 440i xDrive F33 convertible on the same platform. Lowering range is 30 to 60mm (approximately 1.2 to 2.4 inches) front and 35 to 60mm (approximately 1.4 to 2.4 inches) rear. Front spring rate is progressive and rear spring rate is 630 lbs/in. Manufactured in Germany by KW Automotive. A professional wheel alignment is required after installation. Backed by ST Suspension's 5-year unlimited mileage warranty. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Product Description

Ready to ditch the wheel gap? ST coilovers feature a continuously threaded construction for height adjustment from moderate to maximum! Each coilover is manufactured in Germany by KW Automotive. Their expertise and know how ensures maximum quality and fantastic driving dynamics.

Once installed, the ST X coilover can be easily adjusted using a polyamide ring on the galvanized strut or with the vehicle specific height adjustment perch.

Designed in conjunction with KW Germany, ST X coilovers deliver a sporty handling by reducing the car's bodyroll during compression as well as improving agility during spirited driving. The high-quality production of each ST X coilover includes a low-friction and pressure resistant housing alongside a chrome-plated piston rod for maximum longevity. A monoblock guide and ST multi-lip sealing package ensures the twin-tube dampers remain free of dirt particles in all weather conditions.