AEM | Cold Air Intake System Rouge - WRX STi 2.5T 2019-2021

AEM – Cold Air Intake System

Description

The AEM Cold Air Intake System (P/N 21-863WR) is designed for the Subaru WRX STi equipped with the H4 2.5L Turbo engine (See Application Section). It replaces the restrictive factory air filter with a low-restriction aluminum tube and an oil-free DryFlow filter. The system relocates the filter to deliver cooler intake air temperatures, carrying more oxygen for increased power and torque. The tube length and diameter are tuned to match the engine's resonance for optimal airflow. The synthetic filter is washable and reusable. The system is dyno-tested to improve acceleration and engine sound. Estimated gain: 16.5 HP at 5,224 RPM. Replacement filter: 21-2157DK. Wrinkle Red finish. Backed by AEM's Lifetime Limited Warranty.

Specifications

• Brand: AEM
• Part Number: 21-863WR
• Fitment: Subaru WRX STi – H4 2.5L Turbo (See Application Section)
• Type: Cold Air Intake System
• Replacement Filter: 21-2157DK
• Tube: Low-restriction aluminum
• Filter Media: Synthetic oil-free (DryFlow), washable and reusable
• Estimated Gain: 16.5 HP @ 5,224 RPM
• Color: Wrinkle Red
• Warranty: AEM Lifetime Limited Warranty
• Condition: New
• Sold and shipped by Truck Expert

Note:

• FREE Delivery