Intercooler Pipe Kit Hot Cold Side For GM GMC 6.6L LML Duramax Diesel 2011-2016presale Feature: 1. The turbocharger not only generates pressure, but also generates heat in the process. Once the sum of heat and pressure exceeds the level that the plastic intercooler pipe can withstand, it will rupture. Therefore, aluminum alloy pipes are used for upgrading. 2. Silver Pipe & Black Silicone Connection Tube Upgrade from factory plastic tubeSilver Pipe: Constructed of mandrel bent aluminum with a polished finish. A 100% CNC machined