S&B's cold air intake for the 2001-2004 Chevy / GMC Duramax LB7 6.6L was engineered to minimize air restriction and flows 44.63% better than stock. This kit comes with a fully enclosed airbox that protects the filter from dirt and keeps out engine heat. This kit comes with a massive, highly-efficient air filter which results in better performance and protects your engine.
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