Manufacturer: Mishimoto. TechSpec Applications: 2001-2005 Chevrolet Silverado 2500 HD w/ 6.6L Duramax LB7/LLY--2001-2005 Chevrolet Silverado 3500 HD w/ 6.6L Duramax LB7/LLY--2001-2005 GMC Sierra 2500 HD w/ 6.6L Duramax LB7/LLY--2001-2005 GMC Sierra 3500 HD w/ 6.6L Duramax LB7/LLY.
