fits model: Focus. make: Ford. year: 2004–2005.

( Brand: Aem ), ( Manufacturer Part Number: 21-452C ), ( Part Type: Intake ), ( UPC: 840879013257 ), ( C.a.r Notice: Not Legal For Sale Or Use In California ), ( Weight: 6 Lb ), ( Vacuum Tubing Included: No ), ( Replacement Filter: 21-203dk ), ( Product Weight: 6.00 Lb ), ( Product Style: Aem Cold Air Intake System ), ( Product Box Width: 14.50 In ), ( Product Box Length: 18.25 In ), ( Product Box Height: 8.50 In ), ( Intake Pipe Material: Aluminum ), ( Intake Pipe Color / Finish: Gunmetal Gray ), ( Clamp Style: Regular ), ( Clamp Material: Steel )
The AEM 21-452C Air Intake System is an excellent upgrade for your 2004-2005 Ford Focus with a 2.3L or 2.0L engine. This high-performance intake system is designed to enhance your vehicle's engine performance, providing increased horsepower and torque while improving throttle response.
The AEM 21-452C Air Intake System features a high-flow, synthetic air filter that captures and holds more dirt, dust, and debris than traditional paper filters, ensuring cleaner air intake and improved engine efficiency. The air filter is easily accessible and can be cleaned and reused, reducing your overall maintenance costs.
The intake system also includes a polished aluminum intake tube, which provides a smooth and efficient airflow path to the engine. The tube is designed to fit perfectly into your vehicle's engine bay, with no modifications required. The intake tube is also equipped with a heat shield to protect the air filter from engine heat, ensuring optimal performance even in extreme conditions.
The AEM 21-452C Air Intake System is easy to install, with all necessary hardware included. The system comes with detailed installation instructions, and the process can be completed in just a few hours. The system also includes a MAF sensor adapter, which ensures proper air/fuel ratio and fuel economy.
In conclusion, the AEM 21-452C Air Intake System is a high-quality, high-performance upgrade for your 2004-2005 Ford Focus. It provides increased horsepower, torque, and throttle response while improving engine efficiency and reducing maintenance costs. The system is easy to install, with no modifications required, and comes with a polished aluminum intake tube and heat shield for optimal performance. With its high-flow synthetic air filter, this air intake system is a must-have for any Ford Focus enthusiast looking to improve their vehicle's performance.
Pros of buying a AEM 21-452C Air Intake for Ford Focus 2004 2.3L and 2005 2.0L:1. Improved Engine Performance: The AEM air intake system can potentially increase horsepower and torque, providing better acceleration and overall driving performance.
2. High-Quality Construction: AEM uses high-density polyethylene (HDPE) and silicone for its air intake components, ensuring durability and longevity.
3. Easy Installation: This air intake system can be installed without requiring any modifications to the vehicle, making it a straightforward upgrade.
4. Enhanced Engine Sound: The AEM air intake system often results in a more aggressive engine sound, which some enthusiasts find appealing.
Cons of buying a AEM 21-452C Air Intake for Ford Focus 2004 2.3L and 2005 2.0L:1. Increased Noise Levels: The enhanced engine sound can sometimes become too noisy for some drivers, especially during idle or cruising.
2. Higher Cost: Compared to stock air intake systems, aftermarket options like the AEM 21-452C are typically more expensive.
3. Potential Reduction in Fuel Efficiency: While engine performance may increase, the increased airflow can potentially lead to a slight reduction in fuel efficiency.
Recommendation:If you're looking to improve your Ford Focus's engine performance, the AEM 21-452C Air Intake system is a suitable option. Its high-quality construction, easy installation, and potential for increased horsepower and torque make it an attractive choice. However, consider its potential drawbacks, such as increased noise levels and potential impact on fuel efficiency, before making a decision. Ultimately, the AEM 21-452C Air Intake system can be a worthwhile investment for those seeking to enhance their driving experience.
The air filter is relocated to driver-side wheel well which designed reduce intake temperature and increase horsepower. These parts do not require approval as long they are used on public highways. If you'd like to make an appointment for service at and ask the manager, Pete.
This air intake system was developed to accommodate the engines factory emissions control devices including mass flow sensor.
Competition or racing vehicle parts that are used exclusively in on race only vehicles. If the vehicle has a catalyst and installation of part does not remove catalyst, all other emissions related controls are reconnected, then this is considered replacement.
The air intake system is backed by Ames lifetime limited warranty.
Full exhaust systems installed on vehicles that did not originally contain a catalyst and whereby the design allows re installation original function of any other emissions control related components are also considered replacement parts. This air intake system was designed, tuned and Dino-tested to fit specific Ford Focus model's. This means that if a vehicle was not originally equipped with catalyst and all other emissions related controls were connected such as oxygen sensors are reconnected, then the part is considered replacement.
View the 21-452C vehicle application model engine required 2005 Fordfocus2. The intake tubing is constructed from mandrel-bent aluminum featuring a durable gunmetal gray powder coated finish.
Modified parts that alter the emissions control related performance from original part they are replacing, these may have catalysts in them but perform differently equipment or require alteration elimination of other components such as oxygen sensors. It must be a competition vehicle and not used at any time on public highway. Air enters the system through an oversized Aem dry flow synthetic washable filter for outstanding flow, filtration and performance.
Please with any questions at bike or. Labeling a product as being for racing only or closed course competition is not sufficient it to be included under this classification.
OE number and will arrive with appropriate labels to indicate the approved status. The tapered 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.
Slip on mufflers in applications whereby the catalyst is not contained original muffler an example of a replacement part. 21-452C: mass air flow sensor adapter included:mass included when required intake pipe ports:all intake tube ports needed for the specified applications are included air filter outlet shape:rounder material:non-woven synthetic air large end diameter:6 in 152mm height : 5. L4 f i1all automotive 2004 Fordfocus2. 125 in 130mm air filter color:red the Aem 21-452C performance cold intake system produces horsepower and torque gains by replacing your vehicles restrictive factory housing.