Upgrade your factory cold-side intercooler pipe with this high-performance 3” cold-side pipe and boot kit designed specifically for the 2017–2019 L5P Duramax. The stock 2.5” pipe restricts airflow and features tight bends that choke your engine’s potential. This upgraded pipe is full 3-inch diameter throughout, with smooth mandrel bends for significantly improved airflow—helping to increase throttle response, efficiency, and overall power.
The two-piece design allows for an easy installation just like the OEM setup. This kit also includes heavy-duty silicone boots featuring a reinforced inner lining made from advanced DuraCore™-style synthetic material, offering exceptional resistance to heat, pressure, oil, and fuel—greatly reducing the risk of leaks and blowouts.
For added strength and reliability, the kit includes constant-tension T-bolt clamps to provide consistent holding power under all conditions. A CNC-machined quick-disconnect fitting with a new o-ring and spring clip ensures a tight, leak-free seal. Unlike many aftermarket options, this pipe also retains the factory intake air temp sensor mounting location for proper and secure wire routing.
Key Features:
• Designed for 2017–2019 Chevrolet Silverado & GMC Sierra 2500HD/3500HD with 6.6L L5P Duramax
• Replaces restrictive factory 2.5” pipe with full 3” mandrel-bent aluminum
• Improved airflow = better throttle response and more power potential
• Reinforced silicone boots with oil, fuel, and heat-resistant inner layer
• Includes constant-tension T-bolt clamps for maximum sealing strength
• Retains factory IAT sensor mounting point for OEM-safe installation
• Easy bolt-on installation with factory-style two-piece design
Note: Professional installation recommended for best performance and fitment.