Bilstein B3 Original Equipment Front Spring - E46 E39

Bilstein B3 OE Replacement Springs are designed to be direct OE spec replacements for springs on a wide range of vehicles. Bilstein have carefully matched these springs to the specification of the original equipment springs so you can replace them with complete confidence that they will work correctly on your vehicle and restore it to the specification that it left the factory with.Direct replacement for original springsHigh-quality materialsResistant to breakingBilstein B3 springs are designed to be a high-quality replacement for the original equipment springs on your car. If you need to replace a snapped or worn spring, and want complete peace of mind that the replacement part will work correctly, then look no further.Bilstein match the specifications of these springs exactly to what the car originally came with. While you should still always replace springs (or any other suspension component) in pairs, the performance should be almost exactly the same as the original component when new.These are engineered to last. Bilstein use a selection of tough, durable steel alloys and industry-standard anti-corrosion coating.Please note - we generally recommend replacing suspension components in pairs. Not doing so can introduce undesirable handling characteristics. You want the left and right side of the car to react the same way, particularly when braking.These are not lowering springs. If you want uprated springs, we'd normally recommend a lowering spring kit.