FS-P AIRCUPS kits can only work with springs with a constant diameter along their entire length.
The outer diameter of the spring must not exceed 90 mm, while the inner diameter must be at least 62 mm.
A minimum of 30 mm of adjustment is required to achieve the same vehicle height as before installing the FS-P AIRCUPS kit. Otherwise, the spring must be replaced with a shorter one.
Only springs with a flat and ground end can be used.
Adequate space is required around the shock absorber to install the FS-P AIRCUPS kit.