S&B Filter 75-5091 Cold Air Intake For 07-10 Chevrolet Silverado GMC Sierra V8-6.6L LMM Duramax Cotton Cleanable RedMaximum Performance Our cold air intake for the 2007 2010 Chevy GMC Duramax 6. 6L was engineered to minimize air restriction and flows 53. 06 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 Cotton