When you think of upgrading your BMW suspension and lowering your vehicle, you probably have some of the same priorities in mind that B&G Suspension does. B&G Sport Lowering Springs for BMW are engineered to improve handling while maintaining safety and ride quality. B&G Sport Lowering Springs for BMW also will give your vehicle an aggressive look.
B&G Lowering Springs for BMW have all of the features that you're looking for: First, B&G BMW Lowering Springs feature progressive spring rates. This means that they have multiple spring rates to maintain a quality ride while significantly improving handling, cornering, and providing an aggressive vehicle stance. To top it off, B&G Suspension is so confident in the superior quality of their BMW lowering springs and suspension products that they offer a lifetime warranty on them.
The part number for this item is: 08.1.158 and it fits: 2003-2009 BMW Z4 models.
This set of 4 springs will lower your vehicle by 1." in the front and 1." in the rear.