SLP pioneered the underhood cold air package for the Camaro and Firebird. They replace the restrictive, power robbing factory air cleaner assembly. By picking up cool, dense outside air and pumping it directly into the engine these systems are proven to make up to 20 additional horsepower, depending on application. The system is crafted from powder coated 304 stainless steel. The high-gloss, black finish looks great under the hood. Included are two high flow style cone air filters and a custom "block off plate" to isolate the filters from hot underhood air. The smooth flowing, mandrel bent 2.5" diameter intake air tubes are welded into a 3 3/4" diameter collector for a solid, custom fitted assembly. Each kit contains all necessary parts and complete installation instructions. These kits are street legal in all 50 states. E.O. #D-187-12.