Turbo Inlet Manifold for Chevy / GMC Duramax LLY 6.6L is an S&B turbo inlet upgrade for Chevy / GMC Duramax LLY 6.6L. It is designed for the listed Duramax LLY application and should be matched to the correct year, engine, and under-hood configuration before purchase. The component supports a cleaner intake path than a worn or restrictive stock-style inlet while remaining application-specific. Follow S&B's installation instructions and verify emissions compliance for the vehicle.