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aFe POWER 51-12902 Magnum FORCE Stage-2 XP Pro DRY S Cold Air Intake System GM Diesel Trucks 17-18 V8-6.6L (td) L5P

$425.00 Sale:$340.00


Model #51-12902

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One Piece Powder-Coated Steel Heatshield: A one-piece powder-coated steel heatshield is used to keep the air intake charge cool and dense.

Huge 5" Flange 360 Degree Air Filter: A huge 9" x 7.5" base inverted cone 360 degree radial flow air filter is used for excellent flow and performance filtration (98.6% efficient). The Pro DRY S oil-free 3-layer non-woven synthetic media for maximum convenience with excellent filtration and is constructed with 100% polyurethane for long life and multiple cleaning cycles.

Roto-Molded Tube: Rotomolded intake tube is engineered for improved volumetric efficiency and maximum performance. The tube connects to the stock intake elbow for added convenience and quicker installation.

aFe has developed this intake to provide a hassle-free installation that utilizes all factory mounting locations minimizing the use of hardware.

Note: This intake system is not CARB exempt at this time and is not legal for sale in California or use on vehicles registered with the California Department of Motor Vehicles.


  • Magnum Force is the intake choice for Duramax L5P owners wanting the most power. Add +43lbs x ft of torque in 30 minutes, improving airflow by 65% over the stock system by way of a massive 9" x 7.5" open element oval air filter with convenient oil-free filter media. For those looking to really hear the intake and turbo spool, this is the intake kit for you.
  • 850 CFM Rating @ 7" H2O
  • +18 HP and +43 lbs. x ft. Torque max gains
  • Outflows Factory Intake by 65%
  • Utilizes Stock Mounting Locations - Easy Installation - No Cutting or Drilling
  • 3-Angle Filter Adaptor Increases Air Velocity Into the Engine
  • Pro DRY S Oil-Free 3-Layer Non-Woven Synthetic Media for Maximum Convenience With Excellent Filtration Efficiency

Proposition 65

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Vehicle Engine Notes
Chevrolet Silverado 2500

Chevrolet Silverado 3500

GMC Sierra

  • aFe warrants our products to be free from manufacturer's defects due to workmanship and materials.
  • The warranty period begins on the original invoice date and covers the applicable period listed below.
  • This warranty applies only to the original purchaser of the product and is non-transferrable.
  • Proof of purchase of the aFe product is required for all warranty claims.
  • Warranty is valid provided aFe instructions for installation and/or cleaning were properly followed.
  • Proper maintenance with regular inspections of product is required to insure warranty coverage.
  • Damage due to improper installation, abuse, unauthorized repair or alteration is not warranted.
  • Incidental or consequential damages or cost, including installation and removal of part, incurred due to failure of aFe product is not covered under this warranty.
  • All warranty is limited to the repair and/or replacement of the aFe product.
  • All products sold under aFe's Private Label Program do not carry an aFe warranty.
  • All items purchased labeled "Closeout" or "Overstock" are final sale. No returns will be accepted.
  • All items listed as "Race Only" are not covered by aFe's warranty.
  • Click Here for the list of products accepted

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