Banks Power 04-05 Chevy 6.6L LLY Ram-Air Intake System

Fits 2004.5-2005 Chevy/GMC 2500/3500 6.6L Duramax, LLY Only2004 was a split year between LB7 and LLY engines. Check which engine you have. Locate the 8th digit of the VIN. 1 is LB7 and 2 is LLYOptional Super-Scoop (Chevy 42168/GMC 42169) rams cold air for more power.Passes the test. Again and again. Others build and ship without testing. Not Banks. Our Ram-Air Intakes start out as CAD software prototypes and are put through flow simulations. The design is refined until the simulation shows optimal performance. Then a hardware prototype is made and the design is validated on a flowbench. After that comes dyno testing and on-vehicle testing. It takes a superior design to pass all those tests!Filter on a stick: a joke that’s not funny. A filter on a stick is a bad joke. It’s wide-open to hot, power-robbing underhood engine air. Ram-Air houses a giant filter in an enclosed cold-air box, which inhales cool, dense outside air—more than Banks’ competitors and up to 35% more than stock—for