KW 21+ BMW 4 Series Coupe/430i 4WD xDrive w/ Electronic Dampers DDC P&P Coilover Kit

The composite spring perch, made from wear-resistant polyamide with a stainless-steel insert, is a smart design choice. It prevents oxidation while maximizing strength, ensuring the perch can handle the load without issue. This is part of the KW DDC Plug & Play coilover kit, designed to work seamlessly with your BMW 430i xDrive's factory electronic suspension system.

With these coilovers, you don't have to sacrifice the comfort and convenience of your car's adaptive damping. You simply replace the factory struts with KW's Inox-Line stainless steel coilover struts and connect them using your vehicle's original plugs. All the existing controls in your interior, like the button for damper control, will now operate the KW DDC Plug & Play coilovers. This means you can still select between Comfort, Normal, and Sport modes, but now with the driving dynamics tuned by KW's experienced engineers.

Beyond the electronic integration, you also gain the ability to adjust the ride height within a tested range. The Inox-Line stainless steel construction offers true permanent corrosion resistance, meaning the struts won't corrode even when you're adjusting the height. Each damper is hand-built in Germany, dyno-tested for accuracy, and comes with a limited lifetime warranty. You'll also find an elastomer bump stop with integrated dust protection, which helps keep dirt and water away from the piston rod and seals, contributing to long-term durability.