Mishimoto MMAI-STI-08WRD Cold Air Intake for 2008-2014 Subaru WRX/STI 2.5L

Vehicle Fitment

• 2008-2014 Subaru WRX (2.5L Turbo H4)
• 2008-2014 Subaru WRX STI (2.5L Turbo H4)

Features

• Direct-fit performance cold air intake engineered specifically for 2008-2014 Subaru WRX and WRX STI
• Mandrel-bent aluminum intake piping with integrated air straightener
• CNC-machined mass airflow (MAF) sensor housing maintains accurate readings
• High-flow, fully serviceable oiled performance air filter increases airflow and filtration efficiency
• True cold-air design - filter placed outside the hot engine bay to reduce intake temperatures
• Red powder-coated wrinkle finish for enhanced under-hood appearance
• Included powder-coated heat shield minimizes heat soak
• Bolt-on installation that works with the stock ECU - no tuning required on stock vehicles
• Provides an aggressive and rich induction sound
• Mishimoto Lifetime Warranty included

Specifications

• Part Number: MMAI-STI-08WRD
• Application: 2008-2014 Subaru WRX & WRX STI
• Engine: 2.5L turbocharged flat-4 (EJ255/EJ257)
• Material: Powder-coated aluminum intake tubing and heat shield
• Filter Type: High-flow oiled reusable performance filter
• Pipe Diameter: ~2.75"
• Installation: Direct bolt-on replacement - no cutting or modification required
• Tuning Required: Not required on stock ECU

Included Components

• 1x Mandrel-bent aluminum intake pipe with CNC-machined MAF housing
• 1x Wrinkle red powder-coated heat shield
• 1x High-flow oiled performance air filter
• 1x Silicone coupler
• 1x Rubber mounting isolator
• 2x Worm gear clamps
• Installation hardware and Mishimoto Lifetime Warranty documentation

Product Description

The Mishimoto MMAI-STI-08WRD Cold Air Intake Kit is a performance upgrade designed to improve airflow and throttle response on 2008-2014 Subaru WRX and WRX STI models equipped with the 2.5-liter turbocharged flat-4 engine. This cold air intake replaces the restrictive factory intake components with mandrel-bent aluminum piping and a high-flow oiled performance filter, reducing intake restrictions while helping deliver cooler, denser air for better combustion efficiency and a richer induction sound. The true cold-air design positions the filter outside the hot engine bay, and the included powder-coated heat shield minimizes intake air temperature increases under load.

Finished in a striking wrinkle red powder coat for enhanced under-hood style, the intake retains the stock mass airflow sensor using a CNC-machined housing and installs with a simple bolt-on procedure that requires no tuning on stock vehicles. The high-flow reusable air filter is designed for long-term performance and serviceability, and Mishimoto's Lifetime Warranty ensures confidence in durability and quality. This intake is ideal for enthusiasts seeking a balanced upgrade that improves performance, sound, and airflow on Subaru's turbocharged performance models.