Mishimoto 17-19 GM 6.6L L5P Cold-Side Pipe and Boot Kit Wrinkle Black

If you're working on your 2017-2019 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD with the 6.6L Duramax L5P engine, this Mishimoto cold-side intercooler pipe and boot kit is a solid upgrade. The factory pipe is a smaller 2.5 inches, which can really choke down airflow, especially with its tight bends. This Mishimoto pipe is a full 3 inches in diameter throughout, with smooth transitions that make a notable difference in how freely air can move into your engine. More airflow means more power potential and better efficiency.

Mishimoto designed this pipe in two pieces, just like the stock one, which makes installation much simpler. The kit comes with silicone boots featuring DuraCore™ technology. This is a special synthetic material that handles heat, pressure, fuel, and oil really well, helping to prevent leaks and blowouts over time, giving you a more reliable connection. To make sure everything stays put, it includes constant-tension T-bolt clamps for consistent holding power. You also get a CNC-machined quick-disconnect fitting with a new O-ring and clip to ensure a leak-free seal. Plus, it keeps the intake air temperature harness mounting location, so your wiring stays routed just like the factory intended.

This kit is a direct bolt-on upgrade and comes in a wrinkle black powder-coated finish. It's a well-built part that addresses a key restriction in the factory intake system, offering improved airflow and reliability for your Duramax.