Fits 1999-2004 GM 1500 Trucks with 4.8L, 5.3L engines, and 1999-2007 GM 2500/3500 trucks with 5.3L, 6.0L engines.;Cross-Linked Polyethylene (XLPE) High-flow Intake Tube; Serviceable Lifetime High-Flow 8 Layer Cotton Gauze Filter; Serviceable with our Delta Force Cleaning Kit; No Cutting or Drilling For an Easy Installation; High Quality Components With Custom Look; Includes Stainless Steel Hardware; Gains of Up to 5% for HP and TQ; No Special Tuning Required; Lifetime Limited Warranty; Flowmaster Quality; Easy Installation;