K&N 20-21 Hyundai Sonata I4-1.6L DSL Replacement Air Filter Seating This manifold serves a number

This manifold serves a number of functions

Complete Kit

Stage one systems include a wide open throttle activation switch while stage 2 and stage 3 systems include digital progressive controllers that control water methanol output

mechanically-bonded sealing material

Recirculation Adapter

K&N 20-21 Hyundai Sonata I4-1.6L DSL Replacement Air Filter Seating This manifold serves a numberK&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10 Year Million Mile Limited Warranty. K&N drop in replacement filters are designed to install easily into your