fits model: A4. year: 2005–2008.

( Brand: Aem Induction ), ( Manufacturer Part Number: 21-681C ), ( Placement On Vehicle: Front ), ( Warranty: 1 Year ), ( California Prop 65 Warning: Warning )
The 21-681C AEM Induction Air Intake System is a high-performance upgrade for your 05-08 Audi A4. This air intake system is designed to enhance the engine's performance by providing it with a larger and unobstructed airflow.
The 21-681C AEM Induction Air Intake System is made of high-quality materials, including a polished aluminum intake tube and a heat shield to protect the air filter from engine heat. The intake tube is designed to provide a straight and smooth airflow path, reducing turbulence and increasing airflow volume.
The air filter used in this intake system is a high-flow, washable, and reusable AEM Dryflow filter. This filter is designed to provide maximum airflow while also trapping dirt and debris. The Dryflow filter is easy to clean and maintain, saving you money in the long run.
The 21-681C AEM Induction Air Intake System is easy to install and comes with all the necessary hardware, including a MAF sensor adapter and a mass airflow sensor. The installation process is straightforward and can be done in less than an hour, even for those with no prior experience in car modification.
The 21-681C AEM Induction Air Intake System is not just a performance upgrade, but also a stylish one. The polished aluminum intake tube and the AEM logo on the heat shield add a touch of class to your Audi A4's engine bay.
In summary, the 21-681C AEM Induction Air Intake System is a high-quality, easy-to-install, and stylish performance upgrade for your 05-08 Audi A4. It provides your engine with a larger and unobstructed airflow, enhancing its performance and providing a better driving experience. The high-flow and washable AEM Dryflow filter ensures maximum airflow while also being easy to clean and maintain. The polished aluminum intake tube and the AEM logo on the heat shield add a touch of class to your engine bay. This air intake system is a great investment for any Audi A4 owner looking to improve their car's performance and style.
The 21-681C AEM Induction Air Intake system for 05-08 A4 models is a popular aftermarket upgrade for many Audi A4 owners. Here are some pros and cons to consider before making a purchase:
Pros:1. Increased horsepower and torque: The AEM induction air intake system allows for more air to enter the engine, which can result in increased horsepower and torque.
2. Improved engine sound: The AEM intake system is designed to enhance the engine's sound, providing a more aggressive and sporty tone.
3. Easy installation: The AEM intake system is relatively easy to install, and many customers report that it can be done in less than an hour with basic tools.
4. High-quality construction: The AEM 21-681C is made of high-quality materials, including a heat shield and a reinforced intake tube, which can help protect the engine from heat and debris.
Cons:1. Higher price point: The AEM 21-681C is more expensive than some other aftermarket intake systems, so it may not be within everyone's budget.
2. Potential for increased engine noise: While the AEM intake system is designed to enhance the engine sound, some customers have reported that it can be too loud for their liking.
3. Requires additional maintenance: The AEM intake system may require more frequent maintenance than the stock intake system, as it can attract dirt and debris more easily due to its open design.
Conclusion:If you're looking to improve your A4's performance and add a sporty sound to your engine, the AEM 21-681C Induction Air Intake system is a great option. However, it's important to consider its higher price point and potential for increased engine noise before making a purchase. If you're on a tight budget or prefer a quieter engine, there may be other aftermarket intake systems that better fit your needs. Ultimately, the decision to purchase the AEM 21-681C should be based on your specific preferences and needs as a car owner.
Our innovations are inspired by a passion for engineering excellence, being there and getting hands dirty, the only way to really understand technology enough make it better. In mm intake pipe inlet shape: round intake width : Would say if you can't make something better, why it all. The air intake system is backed by Ames lifetime limited warranty.
25 in mm air filter outlet width : 133mm air filter large end diameter: 6 in 152mm outlet length : 311mm product box length : 20.
Innovation has always been Ames core competency mm intake pipe material: aluminum intake outlet length : in. The intake tubing is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish. This air intake system was developed to accommodate the engines factory emissions control devices including mass flow sensor.
514mm product box width : 12. The cylinder shaped Aem dry flow air filter is made from an oil-free, synthetic media that can be used for up to 100,000 miles before cleaning needed depending on driving conditions.
Mass air flow sensor included: adapter included when required mounting hardware ye soil no filter oil required package material: paperboard package type: box product box height : 12. Air enters the system through an oversized Aem dry flow synthetic washable filter for outstanding flow, filtration and performance. Dry flow air filter alum.
Tubing clamps gunmetal gray specifications:air box included: Nair filter element washable: yes air height : 5. View the 21-681C vehicle applications to determine legal status for each.