This Intercooler Pipes Boost Tube Upgrade Kit replaces restrictive factory charge air piping with larger 3.5-inch diameter tubes for 2020–2024 Chevy Silverado and GMC Sierra 6.6L Duramax L5P diesel engines. Made of high-quality aluminized steel for maximum strength and durability, it improves airflow, boosts retention, and reduces the risk of leaks during towing, hauling, and demanding diesel use.

Fitment

• 2020–2024 Chevrolet Silverado 2500 HD, 2500, 3500 -- 6.6L Duramax L5P
• 2020–2024 GMC Sierra 2500 HD, 2500, 3500 HD -- 6.6L Duramax L5P

Product Details

• Pipe Diameter: 3.5 inches
• Material: Aluminized steel
• Construction: Mandrel-bent smooth bends and steel construction
• Airflow Improvement: 26–45% improvement in airflow over stock pipes
• Hose Connections: High-strength 5-ply silicone hoses
• Cold-Side Adapters: Pair of billet aluminum cold-side adapters for intercooler connection and throttle body, specially designed for L5P airflow requirements with Venturi-like taper to maintain boost pressure and volumetric flow
• Replacement Parts: Replaces factory two-piece restrictive pipes with single-piece or optimized multi-piece design for maximum flow
• Hot and Cold Side: Full 3.5-inch diameter maintained on both hot and cold side
• Performance Benefit: Smooth bends support quicker turbo spool thanks to improved boost pressure retention for maximum horsepower

Installation

Bolt-on installation with no tuning required; fits on stock truck with no other modifications or upgrades necessary. Unplug ECU connectors above the lower intercooler input to provide working room; disconnect battery before unplugging ECU harness to avoid a check engine light.

Check local emissions regulations before purchase. Professional installation is recommended.

Get the right part the first time.