Product information updated on 2021-09-17, Manufactured by Cervini - Part Number CER:1163, 1999-06 GMC Sierra and 2000-06 Yukon Ram Air Type III Hood, Cervini's is widely known for having the best quality fiberglass products in the industry. This Ram Air Type III Hood for your 99-06 GMC, is made of such fiberglass and ducted inside the hood but not to the air box, A Cervini's hood is the next mod that you didn’t prepare for, but now have to add it to the top of your list. With the rugged off-road truck and sleek sports car look being the traditional main styling focus, their hoods are created with the modern vehicle in mind. Most of their hoods are fully functional, with maximum under hood clearance. Cervini’s has thought of it all, creating a fully finished underside that eliminates the use for an underside liner and allows it to be painted and finished for creating the ultimate show truck. PLEASE NOTE - Even though some hoods are marked as including the inserts Cervini's is currently not able to supply them.