AirDog II-4G Fuel Air Separation System DF-100/DF-165/DF-200

01 - 10 6.6L GM Duramax LB7/LLY/LBZ/LMM

by AirDog

A6SPBC259 / A6SABC109 / A6SABC112

The next generation in the fuel delivery system.

​The patented AirDog® II-4G has been quality engineered to remove entrained air and water vapor from diesel fuel. The result is a compact, long lasting, efficient, and quiet fuel system made with superior quality. ​The AirDog® II-4G system improves engine performance by:

  • Maintaining Correct Injection Timing
  • Eliminating Spray Pattern Disruption
  • Allowing for a Full Power Stroke and Complete Burn
  • DF-100 is recommended for stock and slightly modified Duramax Diesels.
  • DF-165 is recommended for highly modified Duramax Diesels.
  • DF-200 is recommended for Ultra High Performance Duramax diesel engines.

Give your EcoDiesel a boost of power and performance without the hassle of replacing your entire intake system. This quick fix steps up your performance potential by simply dropping in a high quality AFE filter. Choose between AFE's Pro 5R (oiled) or Pro Dry S (dry) filter and start enjoying free flowing air.

Both filters are constructed with 100% polyurethane on all sides to form a leak free seal. This progressive bump seal is aggressively pliable to conform and seal over the most uneven of surfaces. Both filters also sport rounded open pleats that increase the over all surface area of the filter giving you maximum airflow all while keeping up to 99% of all dust and other harmful media from your intake.

Pro 5R Filter Features:

  • Ultimate Performance Filter
  • Maximum Air Flow for Maximum Power
  • Highest Air Flow Progressive-Media Filter on the Market
  • Can Be Cleaned and Reused

Pro Dry S Filter Features:

  • Oil-Free Convenience
  • Quick and Easy to Service
  • Can Be Washed and Reused
  • Perfect Balance of Performance, Protection, and Convenience


Year Make Engine