6.6L Cold Air Intake suits Chev 2500 (2017-2019) by S&B FiltersMaximum Performance Our cold air intake for the 2017 2019 Silverado Sierra Duramax 6. 6L was engineered to minimize air restriction and flows 47. 70% 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 Cotton