Mishimoto 02-04.5 Chevrolet 6.6L Duramax Pipe and Boot Kit

Mishimoto is known for making well-built cooling system upgrades, and this intercooler pipe and boot kit for your 2002-2004 Chevrolet Silverado 2500 HD or 3500, and its GMC Sierra counterparts, is no exception. If you're looking to get the most out of your 6.6L Duramax engine, especially if you've started modifying it, improving the airflow to and from the intercooler is a smart move. The factory piping can be a bit restrictive, with bends that aren't ideal for smooth airflow. This kit replaces those with mandrel-bent aluminum pipes designed to let your turbo breathe easier.

This kit includes both the cold-side and hot-side piping, all made from polished aluminum. The silicone boots are built with Mishimoto's DuraCore technology, which is a synthetic material that resists heat, pressure, fuel, and oil much better than standard silicone. This means fewer leaks and blowouts down the road, giving you more reliable performance. Mishimoto also includes constant-tension T-bolt clamps, which provide consistent and accurate holding power to keep everything sealed up tight. By reducing restrictions, you can expect improved airflow, which often translates to more power and lower Exhaust Gas Temperatures (EGTs), especially important when you're pushing your Duramax.

To get the most out of this upgrade, consider pairing it with Mishimoto's performance intercooler for your 6.6L Duramax. This kit is made in the USA and comes with Mishimoto's signature lifetime warranty, so you can install it with confidence. Keep in mind that this kit is not CARB approved and cannot be shipped to California.