K&N 77-3021KP Polished High-Flow Intake for 1999-2004 Chevy Silverado 1500 4.8L

Vehicle Fitment

• 1999-2004 Chevrolet Silverado 1500 (4.8L V8 / 5.3L V8)
• 1999-2004 GMC Sierra 1500 (4.8L V8 / 5.3L V8)

Features

• Mandrel-bent polished aluminum intake tube for optimized airflow
• Oversized washable/reusable high-flow cotton gauze filter media
• Direct-fit replacement of factory air filter and intake tube
• Estimated horsepower gain of ~8.2 HP and torque gain ~8.5 lb-ft
• Street legal in all 50 U.S. states
• Filter requires cleaning only every ~100,000 miles under normal conditions
• Includes stainless steel clamps and silicone couplers for secure fit
• No tune required; bolt-on installation in ~60-90 minutes

Specifications

• Weight: 12.8 lb
• Intake pipe: Polished aluminum; diameter approx. 3.50 in
• Filter media: Oiled cotton gauze, red
• Clamps included: 5x stainless steel
• Couplers included: 2x black silicone
• CARB EO number: D-269-29
• Installation time: ~60 minutes

Included Components

• 1x Polished aluminum intake tube
• 1x High-flow air filter (oiled cotton gauze, red)
• 2x Silicone couplers
• 5x Stainless steel clamps
• All required mounting hardware and brackets

Product Description

The K&N 77-3021KP Polished High-Flow Performance Kit is designed for 1999-2004 Chevrolet Silverado 1500 and GMC Sierra 1500 with 4.8L or 5.3L V8 engines. This direct-fit system replaces the factory air filter and intake tubing with a polished aluminum tube and oversized cotton gauze filter to improve airflow, throttle response, and engine sound.

Installation is simple and typically takes about an hour. The filter is washable and reusable, only needing service approximately every 100,000 miles. The system is street legal in all 50 states and maintains compliance with emissions standards.

This upgrade is ideal for owners seeking more performance without major modifications. The kit provides an estimated 8+ HP and ~8-9 lb-ft of torque gain, enhancing on-road performance for stock or lightly modified vehicles. Confirm fitment with your exact engine and drivetrain before installation.