COBB Air Intake Subaru WRX Sedan (2015-2021) Redline Carbon Fiber - 742100

Fitment Information

• Subaru WRX Sedan VA (2015, 2016, 2017, 2018, 2019, 2020, 2021)
  
  • Fits Manual Transmission Models Only
    

Emissions Compliance

• 50 State Legal - This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number: D-660-66 / D-660-101

Note

• This will not fit with the COBB Radiator Shroud.
• Carbon fiber parts are hand laid, slight imperfections or weave pattern variances can be expected. 

Specs & Features

• Carbon Fiber Art: The entire airbox and ducting are crafted from genuine Hand-Laid 2x2 Twill Carbon Fiber, finished in a high-gloss clear coat that resists heat fade and looks incredible.
• Tool-Less Access: Features a custom billet aluminum lid secured by a satisfying Billet Locking Dial, allowing you to access or swap the filter in seconds without touching a single wrench.
• Velocity Stack Tech: Utilizes a CFD-designed Velocity Stack MAF Housing and airflow straightener to smooth out turbulence, ensuring the sensitive Subaru MAF sensor gets precise readings.
• Heat Shielding: The fully enclosed carbon fiber housing isolates the filter from hot engine bay temps, delivering a denser, cooler oxygen charge to the turbo.
• Stealth Hardware: Every clamp, bolt, and coupler is finished in Black Anodized Aluminum or black silicone for a sleek, cohesive "Redline" aesthetic.
• Tuning Ready: Engineered to work specifically with COBB "+Redline" OTS Maps, ensuring safe air/fuel ratios right out of the box.

Product Description

The factory WRX engine bay is a sea of boring black plastic. The COBB Tuning Redline Carbon Fiber Intake changes the game completely. As the flagship of the COBB lineup, this system seamlessly blends elite performance engineering with car-show aesthetics. The main airbox isn't just a plastic shell with a sticker; it is constructed from multiple layers of real 2x2 Twill Carbon Fiber. It catches the light perfectly, resists UV fading, and tells everyone at the meet that you didn't cut corners on your build.

Subaru MAF sensors are notoriously sensitive to turbulence. If the air is "choppy" hitting the sensor, the car drives poorly. COBB engineers solved this with a custom Velocity Stack and an integrated air flow straightener grid. This smooths the incoming air, allowing for precise metering, a stable idle, and consistent power delivery across the entire RPM band. The high-temp composite housing also sheds heat faster than standard aluminum intakes, keeping the intake charge cool.

The coolest feature might be the one you use the least, but appreciate the most. Serviceability. Most intakes require a screwdriver and ten minutes of frustration to clean the filter. The Redline Intake features a Billet Aluminum Lid secured by a sturdy, knurled Locking Dial. Just twist the dial, pop the lid, and the filter is in your hand. No tools, no hassle. It makes maintenance satisfying.

Because this intake flows significantly better than stock, it requires specific tuning. It is compatible with COBB Off The Shelf (OTS) Maps denoted with "+Redline" in the firmware.

The Redline Series is for the WRX owner who wants the best of everything. It removes the restriction of the stock airbox, keeps the intake temps down, and adds a level of refinement that is unmatched in the aftermarket. From the gloss carbon weave to the satisfying click of the billet lid, every interaction with this part feels premium. Upgrade your WRX with the intake it deserves.