4" Cold Air Intake & Heat Shield Kit For 1999-2007 Chevy GMC V8 4.8L/5.3L/6.0LDescription 100% brand new, never been used It's the ultimate performance Cold Air Intake Kit with Heat Shield The air intake kit can help your engine to draw in more cold air resulting in better throttle response and higher explosive horsepower output The kit includes a steel heat shield that features a durable carbon black powder coating for long lasting good looks The heat shield protects the filter from dirt and debris and to keep hot underhood