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aFe Magnum Force Cold Air Intake - 51-81332

Stage-2 Sealed Intake System
  • $312.55
  • Free Shipping
  • Ships Between 11/20 - 11/26
  • What Do You Drive?


  • Style:
    Without Air Scoops, with Pro Dry S Filter (grey)
  • Part #:
  • Estimated power gains: 12 hp and 15 ft. lbs. torque
  • Includes aFe's oil-free filter, synthetic media requires no oil and is easy to service (Grey)

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aFe Magnum Force Cold Air Intake Part #51-81332 Customer Reviews

Average Rating

2 Customer Reviews

cold air intake

Reviewed by noah c (Bakersfield, CA) Reviewed for a 2008 GMC Sierra — Oct 22, 2012 8:22 PM

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1 of 1 people found the following review helpful.

old air intake works as intended. Haven't figured out if I'm getting better full mileage but i can definitely can tell that the Turbo spools up faster with the afe intake. I do wish the the dry filter came with the inverted cone like so many of the oiled filters.

poor fit

Reviewed by William W (Schofield, WI) Reviewed for a 2008 GMC C/K 2500 — Mar 18, 2011 10:48 PM

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Had to drill out 2 of the holes in the air box to install in my 2008 Sierra. Had to lean on the top cover to get two of the screws in. Looks awesome when done and adds a cool sound. Appears I picked up about .5 MPG based on my regular drive (300 miles, all highway). Be very careful with the mass airflow sensor!