SFR has release a Cold Air Intake system for the Kia Optima and the Hyundai Sonata. This is a direct bolt-on replacement intake which eliminates your factory airbox and frees up a minimum of 10 horsepower. We designed this intake system to work with our Front Mount Intercooler and piping kit. This system uses 3″ 304SS pipe and comes with a K&N air filter. It relocates the air filter to the front of the engine bay. By doing this, cold air is directed in from the front bumper to maximize performance!