KW Variant 3 Coilovers – BMW 3 Series Convertible / Wagon (E91/E93)

OVERVIEW

KW Variant 3 is race technology adapted for the road. The kit uses independently adjustable compression and rebound damping, so the ride quality and the handling balance can be dialled in separately rather than traded off against one another.

KW's patented dual-level valve system lets you set rebound damping for the ride comfort you want on the street while the compression damping controls the driving dynamics. Height adjustment is continuous across the published lowering range, so the car can be set to the stance and corner weights you are after.

This kit is for the 2006–2013 BMW 3 Series (E91 wagon and E93 convertible), rear-wheel drive.

SPECS

• Damping: independently adjustable compression and rebound
• KW patented dual-level valve system
• Continuously height adjustable threaded strut bodies
• Front lowering range: 1.2–2.3 in
• Rear lowering range: 0.8–2.0 in
• Drive layout: rear-wheel drive (2WD) applications only

PARTS INCLUDED

• Complete coilover kit as supplied by KW; see the installation instructions for the full bill of materials.

TECH RESOURCES

Additional Parts Required

• A four-wheel alignment is mandatory after installation. Ride height changes alter camber, caster and toe, and the car must be corner-set to the ride height you intend to run.
• Professional installation by a qualified suspension technician. Coilovers are safety-critical components and KW specifies that they be fitted by trained personnel using the supplied instructions.
• Tire-to-strut and tire-to-fender clearance check. Aftermarket wheel, tire and offset combinations must be test-fitted at full lock and full compression at the ride height you select.
• Recalibration of any camera- or radar-based driver assistance systems after the ride height is changed.
• Installer-supplied items: spring compressor, corner-weight or ride-height measuring equipment, and the factory-specified replacement fasteners where the OE hardware is single-use.
• Vehicles fitted with headlight-levelling or ride-height sensors require the sensor links to be adjusted or relocated so the sensors read correctly at the new ride height.

Installation

• KW Variant 3 damper setup manual (KW document 685 77 044) – PDF — rebound and compression click-adjustment procedure and KW's recommended baseline settings.
• Vehicle-specific KW installation instructions are supplied in the box with the kit. Contact Speed Logic if you need a replacement copy.

Notes

• Model-year ranges above reflect standard BMW chassis and engine production years for the listed applications. Confirm exact fitment for your VIN with Speed Logic before ordering.

PART NUMBER

• 35220033 — KW Coilover Kit Variant 3, BMW 3 Series E91/E93, 2WD

VEHICLE APPLICATIONS