SKU: B745120 | UPC: 700424681280
Cobb 15-21 Subaru WRX SF Intake System – Black
The Cobb SF Intake System replaces the factory airbox on 2015-2021 Subaru WRX models with a high-flow aluminum intake tube and oversized filter for improved airflow and quicker throttle response. This black powder-coated setup delivers measurable power gains on dyno tests while maintaining smooth operation with stock tuning. Direct bolt-on installation fits all WRX sedan trims without modifications.
Key Features
- Large Double-Cone Filter: Synthetic dry ProTuner filter provides 99% filtration efficiency with massive surface area for unrestricted airflow even at high RPMs.
- 3-Inch Aluminum Intake Tube: Smooth, mandrel-bent tubing in black powdercoat finish reduces restrictions and heat soak for consistent performance.
- Integrated Heat Shield: Powder-coated shield blocks engine bay heat to keep intake air temperatures low and power delivery steady.
- High-Quality Silicone Couplers: Durable reinforced silicone connects seamlessly to throttle body and turbo inlet for reliable seal under boost.
- Stainless Steel Clamps: Heavy-duty clamps ensure secure, vibration-resistant mounting for long-term durability.
Product Notes
- Designed for stock or tuned applications dyno-tested gains up to 12 wheel horsepower on Stage 1 maps.
- Clean filter every 15,000-30,000 miles based on driving conditions for peak performance.
Installation Notes
- Professional installation recommended.
- Complete install takes 45-60 minutes with basic hand tools no cutting or permanent modifications required.
- Includes all necessary hardware compatible with stock airbox delete and Cobb Accessport.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2021 | Subaru | WRX | Base |
| 2015-2021 | Subaru | WRX | Limited |
| 2015-2021 | Subaru | WRX | Premium |
| 2015-2017 | Subaru | WRX | Sport |
Why Choose Cobb?
- Over 25 years specializing in Subaru performance parts with direct OEM collaboration.
- Dyno-proven designs backed by real-world testing on VA-chassis WRX platforms.
- Precision-engineered components using aircraft-grade aluminum and premium hardware.
Frequently Asked Questions
- Q: Will this fit 2015-2021 Subaru WRX STI models?
A: No, designed exclusively for non-STI WRX sedan models (VA chassis); STI requires separate part number. - Q: What filter media and finish does it use?
A: Features a reusable dry synthetic ProTuner filter (washable) and black powder-coated aluminum tube for corrosion resistance and style. - Q: What is the warranty and install process?
A: Backed by Cobb’s limited lifetime warranty on defects bolt-on install with included instructions, no tune required for basic gains.
Shipping & Handling
- Method: UPS Ground or FedEx Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure foam-padded box, 28″ x 14″ x 10″
- Weight: 8.2 lbs shipping weight
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