Product details
OVERVIEW
The ST X coilover kit for the E88 1 Series convertible replaces the factory struts and springs with a height-adjustable coilover set, letting you dial in ride height and stance without giving up everyday usability.
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)
- Front lowering range: 1.4 in to 2.4 in
- Rear lowering range: 1.4 in to 2.4 in
- 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.
- Fits rear-wheel-drive E88 convertibles without Electronic Damping Control (EDC).
- Vehicle-specific installation instructions for ST 13220062 ship in the box with the kit.
- Speed Logic offers professional installation and alignment: request an appointment.
PART NUMBER
- 13220062
VEHICLE APPLICATIONS
| Make | Model | Chassis | Engine | Years |
|---|---|---|---|---|
| BMW | 128i | E88 | N51 3.0L I6 | 2008–2013 |
| BMW | 128i | E88 | N52 3.0L I6 | 2008–2013 |
| BMW | 135i | E88 | N54 3.0L Twin-Turbo I6 | 2008–2010 |
| BMW | 135i | E88 | N55 3.0L Turbo I6 | 2011–2013 |