These Stanceparts air cups are designed to fit Coilovers with a coilover shaft diameter of 20mm.

• The diameter of the air cup is 120 mm.
• The fitting is 17mm.

The air cup is only 20mm thick in the lowest position. Depending on your coilovers and vehicle, the air cups will generally take up 20 to 30mm of space. If you have enough travel left on your coilovers to lower it, this won't be a problem. If not, you can install shorter springs to compensate.

The air cup is mounted on the top of the spring and just acts like a spacer. When you put pressure in the system, the air cup will expand and the car will raise up to 50mm. The air cup lift system does not affect the ride quality and performance of your coilovers.