GMC Sierra 3500 HD Intercooler Pipe and Boot Kit - Cold-Side - Mishimoto - DuraCore Technology - Polished - 11-15. A direct-fit cold-side intercooler pipe and boot kit engineered for 2011–2015 6.6L Duramax Sierra 3500 HD trucks, designed to replace the factory plastic plumbing with durable aluminum and high-temp silicone components.

This Mishimoto kit uses 3.5" mandrel-bent aluminum pipe with a polished finish and a two-piece design for easier installation and removal. A CNC-machined AIT sensor bung retains your factory air intake temperature sensor. The pipe reduces restrictive bends found in the stock part, allowing improved airflow and helping manage EGTs under load. Included Mishimoto silicone boots feature DuraCore technology, a reinforced inner material that increases resistance to heat, pressure, fuel, and oil to reduce the chance of leaks or blowouts. Constant-tension T-bolt clamps are provided for consistent clamping force. The kit is made in the USA and carries Mishimoto’s lifetime warranty.

Features

• 3.5" mandrel-bent aluminum cold-side pipe, polished
• Two-piece design for easier installation and serviceability
• CNC-machined AIT sensor bung to retain factory sensor
• Mishimoto silicone boots with DuraCore inner layer
• Constant-tension T-bolt clamps included; made in USA; lifetime warranty

If you have questions or want help confirming fitment, call us direct — 512-982-9393 (TX) or 562-981-6800 (CA). We have two locations offering installation and customization services: Austin, Texas and the Los Angeles, California area. If you're considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov