Cobb 15-21 Subaru WRX Carbon Fiber Intake - Redline Edition

COBB
COBB742100
700424680139
Cold Air Intakes
16 Units In Stock - Ships Next Business Day
$ 875.00
$ 875.00

SKU: B742100   |   UPC: 700424680139

Cobb 15-21 Subaru WRX Carbon Fiber Intake - Redline Edition

The Cobb SF Intake System Carbon Fiber Redline Edition replaces the restrictive factory airbox on 2015-2021 Subaru WRX models with a seamless 3.5-inch carbon fiber tube for unrestricted airflow. This direct bolt-on upgrade adds up to 15 wheel horsepower and 18 wheel torque while cutting weight by 44% to just 5.6 lbs versus the stock 9.6 lbs. Drivers experience sharper throttle response and an aggressive intake sound under acceleration.

Key Features

  • Carbon Fiber Construction: High-modulus twill weave tube with Redline red accents resists heat up to 500°F, weighs only 5.6 lbs for better handling balance.
  • Oversized Dry Conical Filter: Massive 8.5" base x 6" top filter flows 30% more air than stock with easy clean-and-reuse design.
  • Seamless Flow Design: Smooth, mandrel-bent 3.5" inlet eliminates turbulence for maximum velocity and dyno-proven gains.
  • Fully Enclosed Heat Shield Box: Powder-coated aluminum box seals out engine bay heat, drawing cooler underhood air for denser charge.
  • Premium Hardware: Reinforced silicone couplers and stainless steel clamps ensure secure fit under boost pressures up to 30 psi.

Product Notes

  • EPA compliant for all 50 states with no ECU tune required for basic operation.
  • Clean filter every 15,000-30,000 miles depending on driving conditions.

Installation Notes

  • Professional installation recommended.
  • Bolt-on process takes about 60 minutes with basic hand tools no cutting or permanent modifications.
  • Compatible with stock MAF sensor and all factory hardware includes T-bolt clamps and HCL couplers.

This Part Fits

Year Make Model Submodel
2015-2021 Subaru WRX Base, Premium, Limited

Why Choose Cobb?

  • Proven leader in Subaru performance with thousands of dyno-tested products worldwide.
  • Every component engineered and manufactured in the USA for exact OEM fit.
  • Backed by extensive R&D including flow bench and real-world track data.

Frequently Asked Questions

  • Q: Will this fit my 2015-2021 Subaru WRX with stock turbo?
    A: Yes, direct bolt-on for all VA-chassis WRX models including Base, Premium, and Limited trims with no modifications needed.
  • Q: What is the Redline Edition material and finish?
    A: Pre-preg carbon fiber twill weave with red gelcoat accents for a race-inspired look; UV protected for long-lasting shine.
  • Q: What is the warranty and installation support?
    A: Limited lifetime warranty on parts detailed PDF instructions and video guides available on Cobb Tuning website.

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed at 25" L x 15" W x 12" H
  • Weight: 7.4 lbs shipping weight (5.6 lbs product)

Request For Information

Have questions about Cobb 15-21 Subaru WRX Carbon Fiber Intake - Redline Edition? Fill out the form below and we'll get back to you by the next business day.
Air Intake Systems

Air Intake Systems

Air intake systems for Hellcat, Trackhawk, TRX, HEMI, and import performance platforms are stocked at Black Ops Auto Works. Shop cold air intakes, short ram intakes, air boxes, intake elbows, mass air flow sensors, scoops, snorkels, and silicone couplers for street cars, trucks, Jeeps, and supercharged Mopar builds. Every intake system is filterable by vehicle platform, engine, and intake style so the correct part ships the first time. Black Ops Auto Works carries 4,427 air intake SKUs across cold air intakes, short ram intakes, and supporting components. What This Category Covers An air intake system pulls outside air into the engine and filters it before combustion. Upgrading the factory intake with a cold air intake, short ram intake, or carbon fiber system can improve airflow, throttle response, induction sound, and horsepower potential on compatible applications. Cold Air Intakes vs Short Ram Intakes Cold air intakes route the filter away from engine bay heat for cooler, de...

View Air Intake Systems Products
Carbon Fiber Parts & Accessories

Carbon Fiber Parts & Accessories

Carbon fiber parts and accessories for Jeep Grand Cherokee, Trackhawk, Dodge Charger, Challenger, Durango, Chrysler 300, Ford Mustang, and Chevrolet Camaro and Corvette are stocked at Black Ops Auto Works. Shop carbon fiber hoods, front splitters, rear spoilers, diffusers, side skirts, mirror covers, headlight covers, badges, and interior trim for Hellcat, Trackhawk, Demon, SRT, and HEMI 6.2L and 6.4L platforms. Every part is filterable by year, make, model, trim, and engine so the correct fitment ships the first time. Black Ops Auto Works carries 2,338 carbon fiber SKUs across hoods, aero, and trim categories. What This Category Covers Carbon fiber parts combine weight reduction with aggressive styling for builds that want a performance look without sacrificing strength. This category spans full hood replacements, splitters and diffusers for aerodynamic upgrades, and smaller trim and badge pieces that finish off an interior or exterior refresh. Why Carbon Fiber Carbon fiber pan...

View Carbon Fiber Parts & Accessories Products
COBB

COBB

COBB Tuning parts for turbocharged performance platforms are stocked at Black Ops Auto Works. Shop the Accessport ECU programmer, cold air intakes, cat back exhaust systems, and supporting hardware engineered for Subaru WRX and STI, Ford Focus ST and RS, Ford F-150 EcoBoost, Mazdaspeed3 and 6, Nissan GT-R, Porsche, BMW, and Volkswagen platforms. Every product is filterable by year, make, model, and trim so the correct part ships the first time. Black Ops Auto Works carries 372 COBB SKUs across tuning, intake, and exhaust categories. What This Brand Covers COBB Tuning built its reputation on the Accessport, one of the most widely used ECU flash tools in the aftermarket, and has expanded into intakes, exhausts, downpipes, and supporting hardware for a range of turbocharged platforms. The catalog centers on a defined group of import and Euro performance vehicles rather than a single brand family. Brand Focus COBB Tuning parts are engineered primarily for Subaru, Ford, Mazda, Nissan...

View COBB Products
Cold Air Intakes

Cold Air Intakes

Shop cold air intakes, short ram intakes, closed-airbox intake systems, replacement air filters, intake tubes, and MAF housings from K&N, AEM, aFe Power, Airaid, S&B Filters, Injen, Roush, Volant, Corsa, Mishimoto, HPS Performance, Cobb Tuning, JLT, Vararam, Steeda, and other performance intake brands. Find full open-element cold air intakes, sealed-airbox systems, dry and oiled air filters, replacement drop-in filter panels, MAF sensor housings, and complete intake tube kits. Cold air intakes for domestic muscle, sport-compact tuners, diesel trucks, off-road 4x4, Euro performance, and modern sport SUVs Mustang, Camaro, Challenger, Charger, F-150, Silverado, Ram, Tundra, Tacoma, 4Runner, Wrangler, Bronco, Cummins, Duramax, Power Stroke, WRX/STi, Civic Type R, GR86, Supra, GR Corolla, BMW M2/M3/M4, Golf R, and hundreds of additional platforms. Filter by vehicle, intake style (open element, closed airbox, short ram, tube kit), filter media (oiled cotton, dry synthetic), tun...

View Cold Air Intakes Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×