HKS Limited Edition Radiator Caps improve engine cooling efficiency. The 1.1kg/cm2 pressure setting activates engine cooling components at a lower temperature to ensure maximum performance. Each HKS cap will include their signature logo to complement aftermarket or stock radiators. HKS Radiator Caps are engineered to ensure a tight, secure fit. Application: all 2010-2016 Hyundai Genesis Coupe 2.0T and 3.8 V6.