fits model: Wrx, Sti. year: 2004–2005.

( Brand: Aem ), ( Manufacturer Part Number: AEM21-477C ), ( Part Type: Intake ), ( Surface Finish: Grey )
The AEM 21-477C Cold Air Intake System is an excellent upgrade for your 2004-2007 Subaru WRX STI, 2004-2005 Subaru Forester XT, or any other Subaru model that fits this specific intake system. This high-performance air intake system is designed to replace your stock air intake system, improving the overall performance of your vehicle.
The AEM 21-477C Cold Air Intake System features a large, heat-shielded, high-density air filter that captures more airborne contaminants than your stock filter, ensuring cleaner air is delivered to your engine. This filter is housed in a durable, polished aluminum intake tube that is designed to minimize airflow restriction, allowing more air to flow into your engine. The tube is also equipped with a unique, dual-ram design that increases the velocity of the air as it enters the engine, further enhancing performance.
One of the standout features of the AEM 21-477C Cold Air Intake System is its unique, dry-flow, 5-ply silicon coupler that connects to the intake tube. This coupler is designed to provide a perfect seal, ensuring that no air is lost during the intake process. It is also heat-resistant and flexible, making it ideal for use in high-performance applications.
The AEM 21-477C Cold Air Intake System is also easy to install, with all necessary hardware included. The system comes with detailed installation instructions that are easy to follow, ensuring that even the most novice of DIYers can install it with confidence. The system is also backed by AEM's limited lifetime warranty, providing peace of mind that your investment is protected.
In summary, the AEM 21-477C Cold Air Intake System is an excellent upgrade for your Subaru. It features a large, high-density air filter, a durable aluminum intake tube with a unique, dual-ram design, and a heat-resistant, flexible silicon coupler. It is easy to install and is backed by AEM's limited lifetime warranty. With this intake system, you can expect improved engine performance, increased horsepower and torque, and better throttle response.
Pros of buying a AEM 21-477C Air Intake for 04-07 WRX STI, 04-05 FXT:1. Enhanced engine performance: The AEM air intake system provides improved airflow to the engine, which can lead to increased horsepower and torque.
2. High-quality construction: The AEM air intake system is made of high-density polyethylene (HDPE) and features a washable and reusable cotton filter, ensuring durability and long-lasting performance.
3. Easy installation: The AEM air intake system is designed to be easy to install, with simple instructions and all necessary hardware included.
4. Improved sound: The AEM air intake system provides a more aggressive engine sound, adding to the overall driving experience.
Cons of buying a AEM 21-477C Air Intake for 04-07 WRX STI, 04-05 FXT:1. Cost: The AEM air intake system is more expensive than some other aftermarket air intake systems on the market.
2. Maintenance: The AEM air intake system requires regular filter maintenance to ensure optimal performance.
3. Potential noise complaints: The more aggressive engine sound provided by the AEM air intake system may be too loud for some drivers, leading to potential noise complaints from neighbors or other parties.
Conclusion:If you're looking for an aftermarket air intake system that provides improved engine performance and a more aggressive engine sound, the AEM 21-477C Air Intake for 04-07 WRX STI, 04-05 FXT is a great option. However, the higher cost and maintenance requirements should be taken into consideration before making a purchase. Ultimately, the decision to buy this air intake system depends on your specific needs and preferences as a driver.
Recommendation:If you're looking for an aftermarket air intake system that offers a balance of performance and cost-effectiveness, I would recommend considering other options on the market before making a final decision. It's important to do your research and compare the features and benefits of different air intake systems to ensure that you're making the best choice for your vehicle and driving style.
Aem cold air intake gunmetal grey systems are designed to increase horsepower and torque gains as well better engine sound when used a replacement for the factory air box filter. These kits include an oversized Aem dry flow synthetic washable air filter for optimum flow, filtration, and performance while allowing easy oil-free cleaning. Aem intake systems are designed, tuned, and Dino-tested for vehicle specific applications.