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aFe Magnum Force Cold Air Intake Magnum FORCE Stage-2Si Cold Air Intake System w/ Pro DRY S Media - - 51-81711

By aFe
1,491 Reviews
$442.75
List Price
$354.20
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Features:
  • Part #: 51-81711
  • +10 hp, +23 ft-lbs of torque
  • Sealed, molded plastic or aluminum cover provides factory style with less intake noise than open systems. Our specially engineered air box openings pull cold air from outside the engine compartment increasing engine efficiency and producing greater performance gain. The cross-linked polypropylene rotomolded plastic air box replaces restrictive stock air box and ensures a consistent supply of cold fresh air; built-in ram scoop forces cold, outside air to filter. Precision designed molded plastic intake tube maximizes airflow volume and speed for optimum power gains. 360 degree flow, washable and reusable, limited lifetime filters are high flow and high performance.
  • Includes aFe's oil-free filter, synthetic media requires no oil and is easy to service (Grey)
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Product Info
Features:
  • The aFe Magnum Force Cold Air Intake System is custom-built for your specific year, make and model vehicle
  • Increased airflow instantly boosts acceleration and overall engine horsepower
  • For increasing levels of performance, your Magnum Force Air Intake comes in 1 or 2 stages:
  • Stage 1: Replaces factory air box and air filter
  • Stage 2: Replaces factory air box, air filter and intake tube
  • Enclosed air intake box offers a clean under-hood look coupled with a quieter sound, perfect for those seeking a suble upgrade
  • aFe also lets you choose from up to 3 high-performance air filters:
  • aFe Original: aFe's original high-performance filter; 5-layers of pre-oiled cotton gauze (Blue)
  • Pro-Guard 7: aFe's patented heavy-duty filter, 5-layers of pre-oiled cotton gauze with 2-layers of non-woven polyester (Yellow)
  • Pro-Dry S: aFe's oil-free filter, synthetic media requires no oil-the easiest-to-service filter in the lineup (Grey)
  • Each aFe high-performance filter is completely cleanable and reusable
  • No-drill, bolt-on installation uses common hand tools and takes less than half an hour
  • aFe Air Intake Systems mount to factory holes—no drilling or other modifications required
  • Your aFe Magnum Intake is Made in the USA
  • Your aFe Performance Air Filter carries a 1-year warranty, your Intake System boasts a Lifetime Warranty against defects
  • Click here to see the Top 4 Questions Asked About Air Intakes
Description:

Stop that stock air intake system from strangling your vehicle's performance. aFe's Magnum Force Cold Air Intake System delivers seat-of-your-pants power gains and lets you to choose performance and filter options.

Depending on the performance needs of your engine, aFe replaces restrictive stock parts with custom-tuned components. Most kits include an aFe performance filter of your choice and all come with a powder-coated steel heat shield to keep the air flow cool.

And, it gets better. Some kits actually replace the entire stock intake system. Your engine gets the maximum, most efficient air possible-monster gains of up to 50 horsepower! What's more, aFe Air Intakes work with your other performance upgrades to bring out the best your engine has to offer and maximize horsepower.

Every aFe Cold Air Intake includes the filter and everything needed to optimize performance. And, the bolt-on design only takes about half an hour to install. Plus, your aFe Magnum Force Cold Air Intake Kit is backed by a Lifetime Warranty against defects.

Notes:
Moss Warranty Act Statement

Thanks to the Magnuson Moss Warranty Act: US Code – Title 15, Chapter 50, Sections 2301-2312, your vehicle’s factory warranty is protected by law when you add aftermarket parts.
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Customer Reviews

Average Rating
Appearance
Ease of Installation
Price/Value
Quality
1491 Customer Reviews
5 Star
898 (60%)
4 Star
471 (32%)
3 Star
86 (6%)
2 Star
26 (2%)
1 Star
10 (1%)

Performance & Gas Mileage Gain

Nice bolt for the VW Jetta Diesel, better performance & gas mileage
Appearance
Ease of Installation
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Posted By Christopher R (Yadkinville, NC) / February 5, 2014
2011 Volkswagen Jetta
Yes
No

looks good on my VW tdi sportwagen.

Expected/hoped I would hear the turbo a bit more with this intake setup, but was barely any difference. I've went thru a couple tannks of gas and have noticed no improvement in gas mileage. I personally think a high flow air cleaner in the stock airbox would be much cheaper with the same end result. Just my opinion...
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Posted By michael e (mercer, PA) / September 26, 2013
2011 Volkswagen Jetta
Yes
No

2010 Jetta TDI wagon Cold Air Intake

I was surprised that the cold air intake kit did NOT come with enough hardware to mount the new elbow to the stock lower housing. Also the elbow/upper housing did NOT fit as well as expected. With only a slight increase in noise the kit is acceptable. However I have yet to notice much of an increase in mileage as hoped.
Appearance
Ease of Installation
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Posted By Scott M (SAINT PAUL, MN) / August 7, 2013
2010 Volkswagen Jetta
Yes
No

ehhh...

only real problem with the intake its self is the screws that mount to the stock air box are easily stripped with little pressure.. Now my main issue is comes with the way your intake was worded I was under the impression that I was purchasing a stage 2 cold air intake because of the way it was worded in the in the listing, and was very disappointed after receiving product. but that's my fault for not reading close enough, just some feedback..
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Posted By Ryan B (CHEYENNE, WY) / May 16, 2013
Yes
No

TDI 2012 jetta

very nice fit and finish but what i really liked when i drove the car 300 miles i got 6 miles to the gallon better than before thx for the great product
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Ease of Installation
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Posted By Dale D (Portland, OR) / May 15, 2013
2012 Volkswagen Jetta
Yes
No

It's worth it.

Adds noticeable power gains and a slight increase in mpg. In my 2013 Passat tdi I'm seeing 48 mpg in mixed driving by just driving it as I normally would. I also have the dpf back ss afe pipe that deletd the muffler. The engine seems slightly louder, in a good way.
Appearance
Ease of Installation
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Posted By Chad D (RAINIER, WA) / March 15, 2013
1999 Dodge Ram
Yes
No
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