• Brand: AEM
• Part #: 21-478WR
• Carb Exempt: Yes
• Carb E.O. Number: D-670-21
• Filter Color: Grey
• Filter Element Type: Dry
• Filter Material: Cotton
• Filter Reusable: Yes
• Includes Airbox: Yes
• Piping Color: Red
• Piping Material: Aluminum
• Tuning Required: No
• Mfgr. Warranty: Limited Lifetime Warranty

The AEM cold air intake for 08-14 Subaru WRX / STI is a great way to get a cooler & denser air charge into your engine. This intake system produces estimated gains of 36 hp. AEM has designed this intake to retain the stock diameter MAF housing and features a built in air straightener to ensure the MAF sensor readings are accurate & will not cause a check engine light. This intake features a 9 inch dryflow air filter to ensure the MAF sensor does not get gummed up which is common with oiled filters. The included heat shield ensures the intake will be inducting a nice cool air charge drawn from the fender.