SKU: 20469592518

AEM Induction Cold Air Intake System (21-750)

$143.10 $159.00
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

AEM Induction Cold Air Intake System (21-750)The AEM 21 750 Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicles restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno tested to fit specific Audi A4 and A5 models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is located in the original air box

The AEM 21-750 Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicles restrictive factory air filter and air intake housing. This air intake system was designed, tuned and dyno-tested to fit specific Audi A4 and A5 models. Air enters the system through an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration and performance. The air filter is located in the original air box location and can optionally be protected by an AEM embossed heat shield which is designed to reduce intake air temperature and increase horsepower. This air intake system was developed to accommodate the engines factory emissions control devices including the mass air flow sensor. The tapered cylinder shaped AEM Dryflow air filter is made from an oil-free, synthetic filter media that can be used for up to 100,000 miles before cleaning is needed (depending on driving conditions). The air intake system is easy to install with commonly available tools and it is backed by AEMs Lifetime Limited Warranty. Some AEM air intakes are not legal for sale or use in California and other states adopting California emission standards, while others are 50 state legal. View the AEM 21-750 vehicle applications to determine the legal status for each vehicle.

Features:

  • Delivers more oxygen to the combustion chamber by drawing in cooler air
  • Custom designed and engineered to deliver maximum power for each specific vehicle
  • Every system includes the innovative, oil-free, high-flow AEM Dryflow air filter
  • Dyno-tuned air intake pipe constructed of mandrel-bent 6061 aluminum for smooth airflow
  • Comes complete with all necessary mounting hardware and comprehensive installation instructions
  • Backed by the AEM limited lifetime warranty
  • Proudly manufactured in the USA
    • Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 20469592518

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    4.1 ★★★★★
    Based on 8 reviews
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    Verified Purchase
    eduardo valdes
    Bozeman, US
    ★★★★★ 5
    Great, simple and reliable.
    Color: Green/Green/Natural
    It's a great watch sad I had to return it because it was a little too small for me. I have very large wrist
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 7, 2026
    J
    Verified Purchase
    John H.
    Los Angeles, US
    ★★★★★ 1
    Bought a "Used like new" watch. Doesn't keep time
    Color: Black/Black/Black/Fast-Wrap
    I've had this for a few weeks. Since then, it's lost about 30 seconds. I'm not sure if it's this specific unit that has the issue or the mechanism itself. It's a shame because it's a killer looking watch.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 8, 2026
    J
    Verified Purchase
    John
    Whiting, US
    ★★★★★ 5
    Another Great Timex !
    Color: Brown/Brown/Natural, Color: Brown/Brown/Natural
    Great beater watch. Lime on hands glows for 15 mins. Indigo is brite. Legibility is great. Fits small wrist well. Great watch!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 14, 2026
    H
    Verified Purchase
    HikerBiker
    Charlottesville, US
    ★★★★★ 3
    Light, retro watch
    Color: Brown/Brown/Natural
    This is a light, comfortable and retro-stylish watch. A mixture of plastic, canvas, and faux-leather makes a good match for a college professor's tweed jacket with leather shoulders and elbow patches. It looks and feels cheap but it's actually a pretty good watch. Mine has a high contrast face making it easy to read. The hands have lume on them but it only glows for a few minutes. There is an indiglo feature when you press the winder so that's great. The day window is tiny and almost unreadable even with reading classes but other than that it is very functional. You can adjust the time and day independently (so you don't have to wind through 100+ hours to get the right day displayed). The winder setting to select between time and day adjust is very finicky. Fortunately you only need to adjust the day 5 times a year. The weakest part is the build quality. I'm not expecting Rolex, but the case corrodes really badly and the strap is short and the stitching failed so it fell off my wrist in about 6 months. I replaced the strap with a better one but the case corroded so badly I tossed it within a year. Other than looking cheap, poor build quality, and being thicker than I would like, I think this is a good watch.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 17, 2025
    I
    Verified Purchase
    Irish Wolfhound NYC
    Battle Creek, US
    ★★★★★ 5
    A nice, comfortable watch.
    Color: Black/ Green
    A nice inexpensive everyday watch. It is accurate, a nice size for my wrists. You barely feel it as it is so light. it has a nice clear face Andy only gripe is that I wished it had slightly better loom. Other than that it is a great watch for the money and this is coming from someone with 30+ watches in my collection in all price ranges. It has earned its way into my regular watch rotation.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on August 14, 2025

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