Cold Air Intake for Chevy Silverado 1500 2500 (1999-2006) 4.8L 5.3L 6.0L EnginesUnlock more power from your 19992007 Silverado, Sierra, or GM SUV with this complete cold air intake systemengineered for 4. 8L, 5. 3L, and 6. 0L V8 engines to deliver cooler air, sharper throttle response, and up to 10% gains in horsepower and torque. More Air, More PowerBuilt for GMT800 V8 Trucks If you're running a GMT800 platform Silverado, Sierra, Tahoe, Suburban, or Escalade, you know these trucks were built to work hard. But GM designed the