K&N 57-3031-1 Air Intake System for GMC Sierra

Upgrade your GMC Sierra 2500 HD or 3500 with the K&N 57-3031-1 Air Intake System. Designed specifically for models from 2002 to 2007, this system significantly enhances airflow to your engine, resulting in an impressive increase of up to 20 horsepower and 20.34 ft-lbs of torque at 4894 RPM. The high-density polyethylene (HDPE) rotationally-molded tube ensures durability while optimizing performance.

Key Features

• Air Filter: High-flow, washable, and reusable cotton gauze filter in a striking red color.
• Durability: Designed to last up to 100,000 miles between services under normal driving conditions.
• Heat Shield: Custom heat shield protects intake air from engine heat, maintaining optimal performance.
• Easy Installation: Most users complete the installation in under 60 minutes with included mounting hardware.
• Street Legal: Compliant in all US states, ensuring peace of mind for your vehicle modifications.

Specifications

• Air Filter Material: Cotton Gauze
• Clamp Material: Stainless Steel
• Intake Pipe Material: High-Density Cross-Linked Polyethylene
• Weight: 11.4 lbs (5.2 kg)
• Warranty: No-Hassle Lifetime Limited
• CARB EO Number: D-269-37

Fitment

• GMC Sierra 3500 (2002-2006)
• GMC Sierra 2500 HD Classic (2007)
• GMC Sierra 2500 HD (2005-2006)
• GMC Sierra 3500 Classic (2007)

Customer Feedback

Owners appreciate the noticeable boost in power and throttle response, making their driving experience more enjoyable. Many have noted the ease of installation and the quality of materials used in the K&N system.

Installation Instructions

• For detailed installation instructions, CLICK HERE.
• To view dyno results, CLICK HERE.