ST Suspensions ST X Coilover Kit – BMW 3 Series RWD (E90 / E92)

OVERVIEW

The ST X coilover kit for the rear-drive E90 sedan and E92 coupe 3 Series swaps the factory struts and springs for a height-adjustable coilover set with fixed, road-biased damping.

ST is the value brand of KW Automotive, and every ST coilover is built by hand at KW in Fichtenberg, Germany. The ST X is the entry point in the coilover range: a fixed-damping, height-adjustable kit built on galvanized zinc-coated steel struts with a friction-optimized composite spring perch and stainless steel insert.

SPECS

• Damper family: ST X (height adjustable, fixed damping)
• Damping adjustment: none (fixed valving)
• Strut material and finish: galvanized zinc-coated steel
• Spring perch: friction-optimized composite with stainless steel insert
• Warranty: 5-year limited, unlimited mileage

PARTS INCLUDED

• Front and rear coilover struts with ST springs
• Spanner wrench for ride-height adjustment
• Installation documentation and technical component report

TECH RESOURCES

• Required: four-wheel alignment after installation and after any ride-height change.
• Required: professional installation with spring compressors and strut service tools.
• Rear-wheel-drive only; xDrive cars use part number 13220048.
• Not for cars with Electronic Damping Control (EDC).
• The 335is is not covered by this part number.
• Vehicle-specific installation instructions for ST 13220032 ship in the box with the kit.
• Speed Logic offers professional installation and alignment: request an appointment.

PART NUMBER

• 13220032

VEHICLE APPLICATIONS