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aFe® 51-81022-1 - Diesel Elite® Magnum Force® Stage 2 Si Aluminum Black Cold Air Intake System with Pro Dry S Gray Filter

142 reviews|Item # mpn4781908799
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  • This product is NOT legal for installation on vehicles required to meet CARB standards and/or registered in California and other states following CARB standards, including NY and ME.
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Vehicle Fitment

Ford

Specifications

TQ Gain
Up to 26 lbs./ft.
Series
Diesel Elite® Magnum Force®
Filter Color
Gray
Tube Finish
Black
System Type
Cold Air Intakes
Material
Aluminum
Replacement Filter
Pro Dry S # 21-91050
Airflow Rating
Up to 29%

Includes

  • Magnum Force Stage 2 Si Air Intake System
  • aFe Diesel Snapback Hat and 12 oz. Cleaner Spray for Air Filter Cleaning

Features

  • +7 HP / +14 lbs. x ft. Torque max gains
  • Outflows factory intake by 88%
  • CAD-Designed Roto-Molded Intake Tube
  • High Quality One-Piece Sealed Housing w/ Cover
  • Pro Dry S Oil-Free washable/reusable Filter For Maximum Convenience
  • Washable and Reusable For Maximum Convenience
  • aFe Special Offers

Product Details

Diesel Elite® Magnum Force® Stage 2 Si Aluminum Black Cold Air Intake System with Pro Dry S Filter by aFe®. This Stage 2 Sealed Intake System in testing, resulted in 7 horsepower and 14 lbs. x ft. torque max gain and outflowed the factory intake by up to 88%. Fully enclosed in a roto-molded plastic housing; this air intake system features a washable/reusable conical air filter that improves airflow for increased horsepower and torque. The housing features an auxiliary inlet duct for increased air volume as well as an attractive cover that provides ready access to the filter for servicing. This intake system also features a heat-insulating roto-molded plastic tube that replaces the stock intake tract and directs increased airflow with improved volumetric efficiency for maximum performance. The filter is constructed with 100% polyurethane for long life and multiple cleaning cycles.

A completely sealed roto-molded plastic housing with cover, keeps warm engine air out and allows for a cooler, fresher, denser air intake charge. This System uses a C.A.D designed, dyno-tuned, roto-mold intake tube to achieve maximum power gains while maintaining a perfect fit. The sealed housing features an auxiliary air inlet scoop that allows for increased air volume into the intake for increased performance and improved throttle response. This intake utilizes a huge, 7" conical Pro Dry S performance air filter for increased performance. This 3-layer progressive, synthetic material air filter requires no oils and cleans with soap and water for maximum convenience. aFe has developed this intake to provide a hassle-free installation utilizing all factory mounting locations and including all hardware needed for installation.

aFe® - WarrantyaFe® - FAQaFe® - Air Intakes FeaturesaFe® - Air Filter ComparisonaFe® - Air Filter Cleaning GuideaFe® - CatalogsMade In USAaFe Authorized Dealer
Brand:
aFe
Part Number:
51-81022-1
UPC:
802959514887
Alternate MPN:
51810221

Reviews

(142)
Only authorized customers can leave a review on our website. We would love to know what you like or dislike about the product. Share your opinion on product quality, appearance, installation, and other characteristics.
/5
1-10 of 142 Reviews
5 of 5
AFE Momentum GT - Cold Air Intake
Service was top notch. Intake fits like a glove and its performance is unmatched. Shipping was super fast. Will do business again - 5 stars
aFe® 51-74210 - Momentum® GT Aluminum Black Cold Air Intake System with Pro Dry S Gray Filter
Posted by Howard / August 01, 20252018 Chevy Camaro
5 of 5
Nice Look & Performance
Installed this on my Carrera S. I can say the throttle response is sharper and engine pulls harder in the mid range. Easy enough installation, took me about an hour. No check engine light post install.
aFe® 52-12352-C - Black Series Stage 2 Carbon Fiber Black Cold Air Intake System with Pro 5R and Pro Dry S Gray Filter
Posted by Wes (Shreveport, LA) / January 24, 20252016 Porsche 911 Series
5 of 5
Good Upgrade for the 911
The power gain isn't crazy but you can feel it, especially at higher RPMs. Install was mostly easy, had to watch a couple Youtube vids to install. Carbon fiber looks pro.
aFe® 52-12352-C - Black Series Stage 2 Carbon Fiber Black Cold Air Intake System with Pro 5R and Pro Dry S Gray Filter
Posted by Rashaun (Fayetteville, NC) / November 21, 20242013 Porsche 911 Series
5 of 5
Amazing
Easy to install, and I feel an instant difference
Posted by Shane (Laramie, WY) / September 03, 20242014 Toyota Tacoma
5 of 5
Great!
Great product. I have really enjoyed this CAI!
Posted by Brian (Midland, TX) / August 16, 20242007 Toyota Tundra
5 of 5
Love aFe Intakes
This is my 3rd aFe intake from TRUCKiD. Easy to install and built well. I went with a cheaper intake from TRUCKiD.com and regretted it right away as it had major design flaws. Replaced with aFe and now enjoying the extra HP, a little better mpg and the sound this makes when taking off is awesome.
Posted by Beau Jennings (Chesterton, IN) / May 04, 20242016 Cadillac Escalade
5 of 5
It’s Worth It
it’s worth it definitely feel the difference, have a professional install
aFe® 54-12172 - Magnum Force® Stage 2 Aluminum Black Cold Air Intake System with Pro 5R Blue Filter
Posted by Marty / April 20, 20242018 Dodge Charger
5 of 5
aFe - Momentum GT Aluminum Black Cold Air Intake System
Looks and Works Amazing, Can't wait to Hop in the Truck!
Posted by Kenneth (Cincinnati, OH) / April 03, 20242017 Ram 1500
5 of 5
Easy Install
The install was super easy perfect fitment and I do notice the torque improvment I bought this with a magna flow muffler delete and im enjoying driving my truck even more now!!
Posted by Joshua (Phoenix, AZ) / March 18, 20242021 Ram 1500
5 of 5
Great All-Around
I got and installed this a few months ago, so I had some time to check the difference with before and after. Installation, I have to say was pretty easy over-all. Some things were not super clear, but I think that if you can function without every single detail on instructions you should be fine. It might have took me about 30 minutes for complete install, that is including running back and forth for tools that were missing or I forgot the first 50 trips. The sound. So, it is air intake...but it does not really sound any different when sitting still. Could not tell you how many times I have had to explain that to people, but there are always those few. Once it gets warmed up and moving, really notice it after 1/4 throttle and it does roar nicely. Power and performance. So, I did not really have any measure of it before to compare it to..so that is on me there. I will say it did seem to throw off my cruise control a little to where instead of a 1-3 MPH difference/drop it is more like 2-4, so nothing real big there but can be annoying in traffic. Might have a dash more hesitancy too while it sucks in that extra air. I got it as a relatively cheap all-around upgrade while sounding nice, it does the job. I will say, I was not able to get my engine cover back on after, but I also did not toy with it much. I might be able to after some added adjustments, but not with the quick connecting.
Posted by Christopher (Elkins, WV) / October 04, 20222012 Ram 1500

Questions and Answers

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