This EGR upgrade package is a must - have for 2017 - 2019 GMC trucks with the L5P 6.6L Duramax engine. It's designed for those who want the best performance from their vehicles. No more worrying about OEM EGR issues! This package comes with everything needed to prevent problems right from the start, keeping your truck running smoothly and saving you money. Part Number: L5P - EGR - A000. Features include (3) pre - built heater hose assemblies with quick - connect fittings, stainless steel Y - bridge and exhaust manifold block - off plates, a mil - spec anodized aluminum thermostat bridge billet block - off with O - ring, a 9th injector plug, coolant line plugs & caps, and all necessary gaskets & hardware. It's proudly made in North America. Note: The 3.5' L5P Downpipe shown in the picture is not included. We recommend adding it to replace your crushed factory downpipe and DOC. It connects to your OE turbo outlet flange and fits your OEM or aftermarket Race Exhaust System with a 4 - bolt flange. Made of high - polished stainless steel and comes with a high - quality heat wrap kit. Custom Tuning Required. Click here to view installation instructions.

Using this EGR solution package is straightforward. First, make sure your vehicle is a 2017 - 2019 GMC with the L5P 6.6L Duramax engine as this package is specifically designed for it. Before installation, remember that custom tuning is required. You can find the detailed installation instructions by clicking the provided link. When it comes to the 3.5' L5P Downpipe, although it's not included in the package, we highly suggest adding it for better performance. During regular use, keep an eye on the components. Check the gaskets and hardware periodically for any signs of wear or loosening. If you notice any issues with the EGR system again, it might be a sign that something needs to be adjusted or replaced. Since the package is made in North America, you can expect high - quality materials, but proper maintenance will ensure its long - lasting performance.