S&B Filter 75-5045 Cold Air Intake For 92-00 GMC K-Series V8-6.5L Duramax Oiled Cotton Cleanable RedMaximum Performance Our cold air intake for the 1992 2000 Chevy GMC Duramax 6. 5L was engineered to minimize air restriction and flows 42. 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 Cotton