Koni Sport (Yellow) Rear Shock Absorber — E36/7 Z3

At the core of the 8040 Series is a twin-tube, low-pressure gas-charged design paired with Koni's internally adjustable rebound system. That means you can dial in damping firmness to suit your driving style — tighter for back-road carving or track days, slightly softer for long highway miles — all without pulling the shock off the car. The rebound adjustment gives the Z3 owner a level of tunability that OEM and most budget replacements simply don't offer.

Koni's Sport (Yellow) lineup has earned its reputation over decades of use by enthusiasts and club racers who demand measurable improvements in cornering stability and road holding without sacrificing the compliance needed for street driving. On the Z3, where rear composure directly affects the car's famously playful handling balance, upgrading to a fresh set of properly valved dampers makes a tangible difference in how planted and predictable the rear end feels through corners.

This unit arrives factory sealed and brand new in the box under Koni part number 8040 1217Sport — the same part number trusted by BMW specialty shops and Z3 owners worldwide. If you're refreshing worn-out dampers or building a handling-focused Z3, this is the rear shock to start with.