Bilstein B12 Pro-Kit 14-16 BMW 435i / 17 BMW 440i Front and Rear Monotube Suspension Kit

If you're looking to give your 2014-2020 BMW 435i or 440i a more aggressive stance and sharper handling, this Bilstein B12 Pro-Kit is a solid option. This kit bundles Bilstein's well-known B8 Performance Plus monotube dampers with Eibach Pro-Kit springs, all tuned together for your specific car. It's designed to give you a noticeable improvement in driving dynamics without going overboard on ride height reduction.

The Eibach Pro-Kit springs included in this package offer progressive characteristics, meaning they stiffen up as they compress. This helps manage body roll during cornering and provides a more connected feel to the road. The springs are engineered to lower your BMW between 25-40mm, depending on your exact model, giving it a sportier look and a lower center of gravity. Bilstein's monotube dampers are known for their consistent performance, even under demanding conditions, helping to keep your tires firmly planted for improved grip and control.

This is a complete kit, meaning you get the front and rear dampers along with the matched springs. Everything is designed to work together as a system, so you don't have to guess about spring rates or damper valving. When installing, it's always a good idea to refer to the manufacturer's instructions for the best results, as proper installation is key to achieving the intended performance benefits.