Hks Kansai Evo X White and Gold Advans HKS Kansai signature HKS Kansai have already developed suspension and springs for the X which is currently being tested. HKS Kansai have told us as stock the X body stiffness is much higher than previous models. Info & data on the new 4 B11 engine is limited but HKS kansai are researching expect exhaust and piping kits to follow shortly.