ST XTA-Height Adjustable Coilovers 08-13 BMW 1Series E88 Convertible 128i/135i

When you're looking to really dial in the handling and stance of your 2008-2013 BMW 128i or 135i, this ST XTA coilover kit is what you'll want to consider. What you get in the box are the front and rear struts, linear race springs, aluminum unibal top mounts with camber adjustment, and all the hardware needed to get them installed. These aren't just basic lowering springs; they're a complete suspension system designed to give you control over your car's ride height and damping characteristics.

The folks at ST Suspensions, who build these in Germany with expertise from KW Suspensions, have put a lot of thought into making these coilovers durable and easy to adjust. The spring perches are made from a tough polyamide composite with a stainless steel insert, which helps prevent corrosion and makes adjusting your ride height smooth and reliable over time. You also get 16 distinct clicks of rebound damping adjustment, allowing you to fine-tune how the suspension reacts, whether you're prioritizing a comfortable ride or sharp track performance. The galvanized steel strut housings are built to resist corrosion, and they include an integrated dust protection system to keep dirt and water away from the piston rod and seals, which is crucial for long-term performance.

Beyond just lowering your car, the included aluminum unibal top mounts let you adjust the front wheel camber. This is a key feature for anyone looking to optimize tire contact patch for aggressive driving or to fit wider wheels and tires. ST even tests each damper on a shock dyno before it leaves the factory to ensure it meets their specifications, and they provide a detailed manual to help you set up the damping correctly. With these coilovers, you're getting a well-built system that offers a lot of adjustability to match your driving style.