ST Suspensions ST X Coilover Kit – BMW 4 Series Convertible / Gran Coupe RWD (F33 / F36)

OVERVIEW

The ST X coilover kit for the rear-drive F33 4 Series convertible and F36 4 Series Gran Coupe replaces the factory struts and springs with a height-adjustable coilover set.

ST is the value brand of KW Automotive, and every ST coilover is built at KW in Germany on galvanized steel strut housings sealed against corrosion, with a continuous thread so ride height can be set with the kit installed. The ST X is the entry point in the coilover range: a fixed-damping, height-adjustable kit 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 F33 and F36 only.
• Vehicle-specific installation instructions for ST 1322000J ship in the box with the kit.
• Speed Logic offers professional installation and alignment: request an appointment.

PART NUMBER

• 1322000J

VEHICLE APPLICATIONS