2004-2005 Duramax Cold Air Intake Kit (42135)

Banks 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 flow bench. After that comes dyno testing and on-vehicle testing. The stock filter-on-a-stick design is wide-open to hot underhood engine air, and hot air robs your GMC/Chevy of power. Banks Ram-Air is the only aftermarket intake with bellows which accommodates engine movement and prevents component damage for longer service life. 

Banks Part Number: 42135

• Enclosed housing
• Giant filter maximizes high-flow filtration
• Bellows to accommodate engine movement
• 5-year Limited Warranty (Filter: Lifetime Limited Warranty)
• Increases power and fuel economy
• Reduces exhaust gas temps (EGTs) and smoke
• Outflows stock and competitors up to 57%
• Oiled or Dry Air Filter Element
• Designed to not cause fault or error codes.

Don't see your question? Ask us anything about this product.

• ?

  Lly?

  Yes, this cold air intake kit is designed specifically for the LLY Duramax engine.

• ?

  Does the banks cold air intake for the Lly come with a maf sensor? I thought I seen a video from Mr banks that said they reformatted the maf sensor. Or is it designed in a way that the stock sensor is still correct

  This does not come with a MAF. When installing this product re-use your MAF.