This louvered black steel hood vent insert from Rugged Ridge reduces under hood temperatures. Fits 07-18 Jeep Wrangler. The new JK Hood Louvers from Rugged Ridge mount to the factory JK hood and are designed to provide more ventilation surface area to assist with reducing heat build-up in the engine compartment. Our hood louvers promote proper airflow through and out of the engine compartment, while adding style and design to your JK.