HKS Fuel Rail Upgrade kits are high-performance fuel delivery units that are designed to properly supply the additional fuel needed for high boost/performance applications. HKS Fuel Rail Upgrade kits...

HKS Fuel Rail Upgrade kits are high-performance fuel delivery units that are designed to properly supply the additional fuel needed for high boost/performance applications. HKS Fuel Rail Upgrade kits...

With over twenty years of developing the industries highest quality performance headers and exhaust products for dozens of America’s finest automotive and truck applications, we have also made...

HKS also offers an adjustable fuel pressure regulator that can be integrated into a factory or upgraded fuel system. The HKS Fuel Pressure Regulator offers the ability to maintain the necessary fuel...

HKS Injectors are precision units engineered to deliver the fuel needed on high-performance applications. When an engine’s horsepower is limited by the factory fuel injectors, larger HKS Injectors...