Air Cup Systems - Front Kit - TSD X Stance PartsAir Cup Systems Front Kit TSD X Stance Parts We partnered with Stance Parts to provide the best bolt on Lift kit for our TSD coilovers! How does it work? It basically is an air cylinder on top of your coilover. Normally you will drive low, whenever you need to pass an obstacle you can apply pressure to the cups and it will raise your car with 50mm. Max speed while driving pressurized is 60 kmh 40mph You can drive pressurised (lifted) for a longer