S&B Filters new dry, extendable cold air intake upgrade for 2001-2004 6.6L Chevy/GMC Duramax LB7 applications features a one piece airbox design that has an integrated box seal to keep out unwanted engine heat.

  • Dry, extendable filter
  • 42.35% more airflow than stock intake
  • 99.74% efficient @ 632 CFM (ISO Coarse Dust)

Make Sure it Fits
Is your vehicle a LB7 or LLY? Check the eighth digit of your VIN to find out. If it’s a 1 you’ve got a LB7 and you’ll need this kit.

Engineered to Outperform Your Stock Intake
Our one piece air box design features an integrated box seal that keeps out unwanted engine heat. The cooler the air, the greater the density, resulting in better performance.

Looks Great, Long Lasting and Can Take the Heat
Premium silicone seals won’t tear or crack and can handle temperatures as high as 400?.

Quick and Easy Install
Designed to fit better than the stock intake. You’ll be breathing easy in 45 minutes.