Mishimoto 17-19 GM 6.6L L5P Intercooler Pipe + Boot Kit Wrinkle Black

If you're looking to get more out of your 2017-2019 Chevrolet or GMC 6.6L Duramax L5P, this intercooler pipe and boot kit from Mishimoto is a solid upgrade. The factory intercooler pipes on these trucks are a bit undersized at 2.5 inches, and the tight bends and resonator on the hot side really choke down airflow. Mishimoto's kit addresses this by using 3-inch diameter pipes with smoother bends throughout, which can significantly increase airflow and unlock more power potential. They've also removed the stock resonator on the hot side for maximum flow, claiming up to a 55-percent reduction in restriction compared to the stock setup.

This kit is designed for ease of installation, featuring a two-piece design for both the hot and cold-side pipes. The connections to the engine are made with silicone boots that incorporate Mishimoto's DuraCore™ technology. This advanced synthetic material is built to resist heat, pressure, fuel, and oil, which helps prevent leaks and blowouts and extends the life of the boots. For a secure connection, the kit includes constant-tension T-bolt clamps that provide consistent holding power. The cold-side pipe also has a CNC-machined quick-disconnect fitting with a new O-ring and spring clip to ensure a leak-free seal. Mishimoto even thought to keep the factory mounting location for the intake air temperature harness, so your wiring stays secure and routed properly.

Beyond just airflow, this kit includes two bungs that can be drilled and tapped for sensors, giving you the option to easily monitor your L5P's performance. The pipes themselves are made from mandrel-bent aluminum and are finished in a wrinkle black powder coat. This kit is a direct bolt-on upgrade and comes with Mishimoto's Lifetime Warranty.