S&B Filter 75-5144 Cold Air Intake For 17-19 Chevrolet Silverado GMC Sierra V8-6.6L L5P Duramax Cotton Cleanable RedMaximum Performance Our cold air intake for the 2017 2019 Silverado Sierra Duramax 6. 6L was engineered to minimize air restriction and flows 47. 7 percent better than stock. This kit comes with a fully enclosed airbox that protects the filter from dirt and keeps out engine heat. Protect Your Engine. This kit comes with a massive, highly efficient air filter which results in better performance and protects your engine. Available in either 8 layer