There are not many choices available for the Xi models and those that are available will not allow for you to drop your car 3". If ride quality is something that is important to you, my recommendation will be the KW V3 XI system. The KW V3 will allow for you to adjust not only the height, but will also allow for you to adjust both the rebound and compression characteristics.
The rebound damping primarily, controls pitch and roll of the vehicle, especially in the low speed damping range which directly influences handling and comfort. Therefore vehicle can be adjusted to the needs of the driver, making the ride variable from comfortable to sporty and stiff, both with improved road handling.
The compression characteristics are adjusted utilizing a new, patented valve at the lower end of the damper casing. The unique low-speed pressure adjustment is the decisive feature of this technology. In this absorption area the handling of the vehicle is greatly influenced. An increase in the damping force supports the vehicle even during compression, thereby preventing pitch, roll and notably improving cornering behavior.
KW V3 XI Drop Rates: