Available in black, red, blue or chrome Spectre's Air Duct Hose is designed to attach directly to any airbox inlet, plenum, intake tube or mounting plate with a 3 inch outside diameter to bring cold air into the engine. With a memory-flex design to help retain position and for easy bending, this kit includes 28 inches of ducting and 2 threaded PVC couplers. Multiple pieces can be threaded together for longer applications.