fits model: Wrx, Sti. year: 2008–2011.

( Brand: Aem ), ( Manufacturer Part Number: 21-478WR ), ( Part Type: Intake )
The 21-478WR AEM 2008-2011 WRX/STI Wrinkle Black Cold Air Intake System is an exceptional upgrade for your Subaru WRX or STI. This high-performance intake system is designed to enhance your vehicle's engine performance by replacing the restrictive factory air filter and airbox with a free-flowing system that allows more air to flow into the engine.
The AEM 21-478WR intake system features a high-flow, washable and reusable synthetic air filter, which is housed in a sleek, black intake tube with a unique wrinkle finish. The intake tube is specifically designed to minimize turbulence and maximize air flow, resulting in improved engine performance.
The intake system also includes a heat shield to protect the air filter from engine heat, ensuring that the air entering the engine is as cool as possible. The heat shield is made from a high-temperature resistant material and is designed to fit snugly against the engine bay, reducing the amount of heat that can reach the air filter.
The AEM 21-478WR intake system is easy to install, with all necessary hardware and instructions included in the box. The system is designed to work seamlessly with your vehicle's factory mass airflow sensor, ensuring that the engine receives the correct air-fuel mixture.
Overall, the 21-478WR AEM 2008-2011 WRX/STI Wrinkle Black Cold Air Intake System is a high-quality, performance-enhancing upgrade for your Subaru WRX or STI. With its sleek design, easy installation, and improved engine performance, this intake system is sure to be a great addition to your vehicle.
Pros of the 21-478WR AEM 08-11 WRX/STI Wrinkle Air Intake:1. Improved Engine Performance: The AEM air intake system is designed to increase horsepower and torque by providing your engine with more air. This can result in improved acceleration and overall vehicle performance.
2. Enhanced Sound: The 21-478WR AEM air intake system features a high-flow, free-breathing design that allows for a more aggressive engine sound. This can add a sporty touch to the driving experience.
3. Durable Construction: The AEM air intake is made from high-quality materials, including a polished aluminum heat shield and a reinforced silicone coupler. This ensures that the intake system will withstand the rigors of regular use and provide long-lasting performance.
4. Easy Installation: The 21-478WR AEM air intake system is designed to be easy to install, with clear instructions included in the package. This means that you can upgrade your vehicle's intake system without needing to pay for professional installation.
Cons of the 21-478WR AEM 08-11 WRX/STI Wrinkle Air Intake:1. Increased Noise: While some people may appreciate the aggressive engine sound that the AEM air intake system provides, others may find it to be too loud. This can be especially noticeable when driving in residential areas or at lower speeds.
2. Potential Increase in Fuel Consumption: The increased engine performance provided by the AEM air intake system may result in a slight increase in fuel consumption. This is due to the fact that the engine is using more air to produce more power, which can require more fuel to burn.
3. Potential Impact on Emissions: The 21-478WR AEM air intake system may result in an increase in emissions due to the fact that it allows for more fuel to be burned. This may be a concern for individuals who are looking to reduce their carbon footprint.
Conclusion:Overall, the 21-478WR AEM 08-11 WRX/STI Wrinkle Air Intake is a high-quality, durable, and easy-to-install upgrade for your vehicle's intake system. It can provide improved engine performance, a more aggressive engine sound, and a polished aluminum heat shield that adds a sporty touch to your vehicle. However, it is important to consider the potential downsides, such as increased noise and potential impact on fuel consumption and emissions, before making a purchase.
Recommendation:If you are looking to upgrade your vehicle's intake system and are willing to accept the potential downsides, then the 21-478WR AEM 08-11 WRX/STI Wrinkle Air Intake is a great option. It is a high-quality product that is easy to install and can provide noticeable improvements to your vehicle's performance. However, if you are concerned about noise, fuel consumption, or emissions, then you may want to consider other options or speak with a qualified mechanic before making a purchase.
All Aem cold air systems are either 50-state legal or pending excluding off road and hybrid, include a lifetime dry flow synthetic filter come with limited warranty. Comprehensive installation instructions, decals and license plate frame included available powder coated in red, blue or silver, with a mirror-polished finish guaranteed for life. 4 efficient, filters to one micron, and never needs filter oil.
Tuning the inlet pipe in length and diameter to match engines resonance helps move more air cylinders think of your engine as a big pump, no company on market can tune an well we. But that's only part of the power equation. Cooler air carries more oxygen, which translates into a intense explosion in the combustion chamber to create horsepower and torque. Outperforms every other cold air system on the market manufactured and assembled in USA 50-state legal or pending legality inlet constructed of lightweight aircraft aluminum mandrel bent for maximum flow reinforced tog-welded brackets fittings deliver added durability utilizes a complete hardware kit with soft mounts guaranteed perfect fit Aem lifetime dry flow synthetic filter is 99.
3 kg intake pipe material: aluminum carb OE number:title: Aem-21-478wr cold air system color: wrinkle red pioneered the induction for sport compact cars in a relocates filter outside of engine compartment to deliver coolest inlet temperatures possible. Our cold air systems are Dino-proven and tested against the competition to create more usable power than any other system of their kind.