AEM Cold Air Intake System for Subaru WRX/STI 2015-2017, 2.5L 4-Cyl, Black Finish

AEM Cold Air Intake System - Part Number: 21-735WB

The AEM Cold Air Intake System, specifically designed for the Subaru STI (2015-2017) and WRX (2015-2016), is a solid upgrade for those looking to enhance their vehicle's performance. This intake system replaces the factory airbox and filter, allowing for a smoother airflow and a more aggressive engine sound that many enthusiasts appreciate.

One of the standout features of the 21-735WB is its oversized AEM Dryflow synthetic air filter. This washable filter is designed to provide excellent airflow and filtration without the need for oil, making maintenance a breeze. Customers have noted that the ease of cleaning the filter has made their ownership experience much more enjoyable.

The system utilizes a mandrel-bent aluminum intake tube, which not only looks great in a wrinkle black finish but also helps in reducing intake temperatures. Cooler air means denser air, which translates to better combustion and, ultimately, more power. Users have reported an estimated horsepower gain of around 32 HP at 5400 RPM, which can make a noticeable difference during spirited driving.

Features and Specifications

• Warranty: Limited Lifetime
• Weight: 8.9 lb (4 kg)
• Air Filter Color: Red
• Air Filter Height: 9 in (229 mm)
• Air Filter Material: Non-woven Synthetic
• Air Filter Washable: Yes
• Clamp Material: Stainless Steel
• Estimated Horsepower Gain: 32 HP @ 5400 RPM
• Intake Pipe Material: Aluminum
• Mass Air Flow Sensor Adapter Included: Yes, when required
• Mounting Hardware Included: Yes
• Street Legal In All US States: Yes, see vehicle applications
• CARB EO Number: D-670-24

Many users have shared their satisfaction with this product, highlighting not only the performance gains but also the enhanced sound that adds to the driving experience. One customer mentioned, "I could feel the difference right away. The sound is addictive, and the power increase is noticeable." Another noted, "Installation was straightforward, and the quality of the materials is impressive."

Overall, the AEM Cold Air Intake System 21-735WB is a worthwhile investment for Subaru owners looking to improve their vehicle's performance while enjoying a more engaging driving experience.