GTO 2005 "Ram Air H.O" Hood, New for 2005 Pontiac GTO, this composite "Ram-Air H.O." hood is equipped with a pair of functional scoops. This ram air effect can add up to 10 horsepower over stock by bringing in denser, cooler air into your engine. Behind the scoops, custom-formed inlet ducting mates directly to the car's factory air-box opening. This also gives your GTO a much-needed dose of visual excitement, without fundamentally altering the car's clean, distinctive shape. Shipping is not included. Ships truck freight. Ship to a valid business address only.