AEM 21-703C Performance Intake Air Filter

( Brand: Aem ), ( Bundle Listing: No ), ( Color: Gray/red ), ( Country/region Of Manufacture: United States ), ( Feature 1: Increase Horsepower ), ( Feature 10: Round Filter Outlet Shape ), ( Feature 2: Tuned And Dyno-tested ), ( Feature 3: Improve Acceleration And Engine Sound ), ( Feature 4: Low Restriction Aluminum Tubing ), ( Feature 5: Lasts Up To 100, 000 Miles Before Cleaning ), ( Feature 6: Washable And Reusable Oil-free Filter Media ), ( Feature 7: Clamps Included ), ( Feature 8: Non-woven Synthetic Air Filter Material ), ( Feature 9: Aluminum Intake Pipe Material ), ( Fitment Type: Direct Replacement ), ( Manufacturer Part Number: 21-703C ), ( Material: Aluminum/non-woven Synthetic ), ( Mounting Hardware Included: Yes ), ( Placement On Vehicle: Front ), ( Series: Performance ), ( Style: Intake System ), ( Type: Pipe W/ Filter ), ( Manufacturer Warranty: Lifetime )

Review AEM Gray Performance Cold Air Intake System Filter fits FIESTA 2011–2013

Introducing the AEM 21-703C Performance Air Intake Filter for the 11-13 Ford Fiesta, a high-performance upgrade designed to enhance your engine's power and airflow. This air intake system is engineered to provide a smoother and more efficient airflow path, leading to increased horsepower and torque.

The heart of this air intake system is the 21-inch high-flow air filter, which utilizes a synthetic, oil-free, and washable filter media. This media is specifically designed to capture the smallest of particles, ensuring that your engine receives only clean air. The filter's large surface area increases the airflow rate, allowing for a more potent combustion process, and the open design ensures that it remains cool under high-performance driving conditions.

The AEM 21-703C Air Intake System also features a mandrel-bent aluminum intake tube that provides a straight and smooth airflow path from the filter to the engine. The tube's polished finish not only adds an aesthetic touch to your engine bay but also maintains the structural integrity of the system.

This air intake system is designed to be a direct replacement for the OEM intake system, making installation simple and straightforward. With no modifications required, you can easily upgrade your Ford Fiesta in no time. Additionally, the system comes with all necessary hardware and detailed installation instructions to make the process even more hassle-free.

By upgrading to the AEM 21-703C Performance Air Intake Filter for your 11-13 Ford Fiesta, you'll not only experience an increase in power and torque but also benefit from improved throttle response and engine sound. This upgrade is perfect for those seeking to unleash the full potential of their Fiesta, making it an essential modification for performance enthusiasts.

In conclusion, the AEM 21-703C Performance Air Intake Filter is a high-quality, easy-to-install upgrade that delivers improved power, torque, and engine sound for your 11-13 Ford Fiesta. With its large, high-flow filter, mandrel-bent aluminum tube, and simple installation process, this system offers a significant return on investment for those looking to enhance their driving experience.

The AEM 21-703C Performance Air Intake Filter is a popular aftermarket upgrade for the 11-13 Ford Fiesta hatchback. This air intake system is designed to enhance the engine's performance by providing a freer airflow into the engine. Here, we will discuss the pros and cons of buying this air intake filter for your Fiesta.

1. Improved Airflow: The AEM air intake system comes with a high-flow cotton filter that allows more air to enter the engine, leading to improved engine performance.

2. Enhanced Horsepower: The increased airflow results in more power being produced by the engine. According to AEM, this air intake system can provide an additional 5-10 horsepower and 5-8 lb-ft of torque.

3. Better Filtration: The high-flow cotton filter provides better filtration than the stock air filter. This ensures that the engine is protected from dirt and debris, while still allowing for increased airflow.

4. Easy Installation: The air intake system comes with all necessary hardware and is designed for easy installation. It typically takes around 30 minutes to install.

5. Improved Engine Sound: The AEM air intake system also provides a more aggressive engine sound, adding to the driving experience.

1. Cost: The AEM air intake system is more expensive than the stock air filter. The cost may not be justifiable for some, especially those who are not looking for significant power gains.

2. Maintenance: The high-flow cotton filter requires more frequent cleanings than the stock air filter. AEM recommends cleaning the filter every 15,000 to 20,000 miles.

3. No Check Engine Light Cover: The AEM air intake system does not come with a check engine light cover, which some may find unsightly.

4. Potential Tune Needed: Depending on the specific modifications made to the engine, a tune may be required to maximize the performance gains from the air intake system.

The AEM 21-703C Performance Air Intake Filter is a great option for Fiesta owners who are looking to enhance their engine's performance. The increased airflow results in more power, better filtration, and an improved driving experience. However, the cost, maintenance requirements, and potential need for a tune may be drawbacks for some. Ultimately, the decision to purchase this air intake system depends on your personal preferences and goals for your Fiesta.

If you are looking for a significant power gain and are willing to invest in the cost and maintenance, then the AEM 21-703C Performance Air Intake Filter is an excellent choice for your Fiesta. However, if you are on a budget or are not looking for significant power gains, then it may be worth sticking with the stock air filter. Regardless of your decision, this air intake system is a popular and effective upgrade for the Fiesta community.

part # 21703c price

• $98.00

specifications filterblank:

• for models: Fiesta
• for years: 2011-2013
• brand: Aem
• bundle listing: No
• color: Gray/red
• country/region of manufacture: United States
• feature 1: Increase Horsepower
• feature 10: Round Filter Outlet Shape
• feature 2: Tuned And Dyno-tested
• feature 3: Improve Acceleration And Engine Sound
• feature 4: Low Restriction Aluminum Tubing
• feature 5: Lasts Up To 100, 000 Miles Before Cleaning
• feature 6: Washable And Reusable Oil-free Filter Media
• feature 7: Clamps Included
• feature 8: Non-woven Synthetic Air Filter Material
• feature 9: Aluminum Intake Pipe Material
• fitment type: Direct Replacement
• manufacturer part number: 21-703C
• material: Aluminum/non-woven Synthetic
• mounting hardware included: Yes
• placement on vehicle: Front
• series: Performance
• style: Intake System
• type: Pipe W/ Filter
• manufacturer warranty: Lifetime

shipping filterblank:

• class: Expedited
• type: Fixed
• cost: $0.00
• service: Expedited
• transit: 2-5 Days

general filterblank:

• ATV, Side-by-Side UTV Parts Accessories > Air Intake Fuel Delivery > Air Filters
• condition: New

payments filterblank:

• other
• wallet: Google-pay
• credit card: Discover

offer filterblank:

• sold: 0
• availability: In Stock
• started: July 31, 2025
• quantity: 4
• options: Ship-to-home

returns filterblank:

• paid by: Seller
• policy: Returns Accepted
• time: 30 Days

seller filterblank:

• rating: 98.8%
• # reviews: 333596

Aem 21-703C Is Similar To:

• Aem 22-501p Polished Aluminum Short Ram Air Intake System With Filter For Civic (60.4% similar) $170.00. (February 17th, 2025)
• Aem 22-416b Blue Aluminum Short Ram Air Intake System With Filter For Accord Cl (57.9% similar) $135.15–$249.99. (February 25th, 2025)
• Aem 22-407p Polished Aluminum Short Ram Air Intake System For 90-93 Honda Accord (48.8% similar) $249.99–$381.43. (February 25th, 2025)
• Aem 21-715p Performance Cold Air Intake System With Filter For 12-17 Veloster 1.6l (82.7% similar) $299.99–$313.95. (September 26th, 2025)