GMC Sierra 3500 HD Intercooler Pipe and Boot Kit - Mishimoto - Hot-Side, DuraCore - Polished - 2011-2015. A direct-replacement hot-side intercooler pipe kit built to improve airflow and durability on 6.6L Duramax trucks.

This Mishimoto hot-side kit replaces the restrictive factory 2.5" piping with a 3.0" mandrel-bent aluminum pipe in a polished finish, reducing flow restrictions and helping lower exhaust gas temperatures. The two-piece design mirrors factory routing for a straightforward bolt-on installation and pairs well with Mishimoto 6.6L intercooler upgrades. Silicone boots use Mishimoto DuraCore material for improved resistance to heat, pressure, fuel, and oil, and the kit includes constant-tension T-bolt clamps for reliable sealing under boost. Made in the USA and backed by Mishimoto's lifetime warranty, this kit is aimed at enthusiasts seeking a durable, serviceable upgrade for 2011–2015 GMC Sierra 3500 HD Duramax trucks.

Features

• 3.0" mandrel-bent aluminum piping with polished finish
• Two-piece, direct bolt-on replacement for hot-side pipe
• Mishimoto DuraCore silicone boots for increased resistance to heat, pressure, fuel, and oil
• Constant-tension T-bolt clamps for consistent holding power
• Made in the USA with Mishimoto lifetime warranty
• Fitment: GMC Sierra 3500 HD 6.6L Duramax (2011–2015)

If you have questions or want help confirming fitment, call us directly — 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area where we offer installation and customization services.

If you are considering purchasing multiple items, please contact us for shipping discounts. We install on premises at both locations.

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