Banks Power 06-07 Chevy 6.6L LLY/LBZ Ram-Air Intake System - Dry Filter
The Banks 42142-D puts a Ram-Air intake with a washable dry element on 2006 and 2007 Classic body Chevrolet Silverado and GMC Sierra heavy duty pickups with the 6.6L Duramax. The LBZ is the engine most of these trucks carry, and plenty of owners have already added a tune and an exhaust. The stock airbox is often the next bottleneck, which shows up as rising exhaust gas temperatures and smoke when the truck is working hard.
Banks replaces the factory box, paper filter and intake tube with a sealed housing, a large reusable element (Banks part 42138-D), a dedicated intake tube for this body style, a new turbo intake hose and a 5.30 inch inside diameter bellows between the cover and the tube. The bellows soaks up engine movement so the plastic parts are not cracked by torque roll. The tube outlet is 7-1/8 inches across, and Banks says the system flows up to 57 percent better than stock while the enclosed box keeps hot engine bay air away from the filter. The result Banks claims is more power and mileage with lower EGTs and less black smoke, without setting fault codes.
Going dry rather than oiled means you clean the element with water and a dry filter cleaner and reinstall it. There is no oil to over-apply and contaminate the MAF sensor.
Keep the drivetrain in mind before adding power. The LBZ Allison is strong, but a worn converter clutch or dirty fluid will show up quickly under more torque. Our Allison 1000 TCC shudder diagnosis guide explains what to check if you feel a vibration at steady cruise.
The Banks manual for this part covers the 2006-2007 Classic pickups specifically. The 2007 New Body trucks and later 2007-2010 LMM engines use the separate 42172 kit, so check the body style before ordering; the Classic has the older interior and the earlier front end. Make sure your factory MAF sensor is in good shape, since it moves to the Banks tube, and look for oil or cracks in the stock turbo intake hose.
Listed for 2006-2007 Chevrolet and GMC 2500HD and 3500 Classic pickups with the 6.6L Duramax. Our listing and CARB executive order D-161-102 both describe the application as LLY/LBZ, while the Banks manual names the LBZ. D-161-102 lists 42142-D for 2006-2007 GM pickups, but the copy on the CARB site is now stamped rescinded, so California owners should check with us before buying. When in doubt, send us your year and VIN. The oiled version is the 42142 oiled filter kit, and transmission parts for these trucks are in our Allison 1000 collection.
To keep transmission temperatures down while towing, pair the intake with the braided Allison cooler line kit for the LBZ and follow our Allison 1000 transmission service guide.
| Brand | Banks Power |
| Part number | 42142-D |
| Fits | Banks Power 06-07 Chevy 6.6L LLY/LBZ Ram-Air Intake System - Dry Filter |
| Type | Short Ram Air Intakes |
| Condition | New |
| Ships | Same business day (in stock), from the USA |
| Warranty | 1-year |
No. This kit is for 2006-2007 Classic body pickups. 2007.5 and later New Body trucks with the LMM use the 42172 Ram-Air kit.
Yes. The factory MAF moves to the Banks intake tube with an extra O-ring supplied in the kit. Tighten its screws to 3 inch-pounds to avoid cracking the boss.
Banks lists 50,000-100,000 miles for street driving, sooner in dusty conditions, or when a restriction gauge reaches 18 inches of water. Clean it with a dry filter cleaner and water and let it air dry.
It is designed not to cause codes on a stock truck. Make sure the MAF connector is fully seated and the tube clamps are tight, since a leak after the sensor can upset airflow readings.
It is a good idea. Fresh fluid and a filter cost little next to clutch damage, and cooler lines are worth inspecting on trucks that tow.
