SKU: B715100-BL | UPC: 799928865319
Cobb Subaru SF Intake System – COBB Blue 2008-2014 WRX STI
The COBB SF Intake System replaces the restrictive factory airbox on 2008-2014 Subaru WRX STI models with a high-flow design for improved throttle response and power. This bolt-on system fits USDM EJ257 2.5L turbo engines in sedans and hatchbacks. Dyno testing shows gains up to 12 WHP and faster spool.
Key Features
- Double-Cone Air Filter: Oversized dry filter flows 35% more air than stock while trapping contaminants for long-term engine protection.
- Aluminum Intake Pipe: 3-inch mandrel-bent tubing powdercoated in COBB Blue reduces restrictions and resists heat soak.
- Integrated Heat Shield: Powdercoated steel shield blocks engine bay heat to deliver cooler, denser air for consistent performance.
- Silicone Couplers: Multi-ply reinforced silicone connects securely to stock turbo inlet and throttle body for zero leaks.
- Stainless Steel Clamps: Heavy-duty clamps ensure airtight seals under boost pressure up to 25 psi.
Product Notes
- 100% bolt-on installation with no ECU tuning or check engine lights required.
- Serviceable filter cleans with compressed air and simple replacement part.
Installation Notes
- Professional installation recommended.
- Complete install takes 45-60 minutes with basic hand tools remove stock airbox and MAF housing.
- Includes all necessary hardware for direct fit to OEM turbo inlet and throttle body.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2008-2014 | Subaru | Impreza WRX | STI |
Why Choose COBB?
- COBB leads Subaru performance with 25+ years of direct OEM collaboration.
- Every component dyno-tested for real-world power on stock and modified engines.
- Precision CNC-machined and TIG-welded for exact fitment and durability.
Frequently Asked Questions
- Q: Will this fit my 2011 WRX STI hatchback?
A: Yes, direct fit for all USDM 2008-2014 Impreza WRX STI sedans and hatchbacks with EJ257 engine verify chassis code. - Q: What material is the COBB Blue finish?
A: Durable powdercoat on aluminum pipe and steel heat shield resists corrosion and high underhood temperatures. - Q: What is the warranty and install process?
A: COBB offers limited lifetime warranty on defects, bolt-on with included instructions, no Accessport tune needed.
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Secure box 23.5 x 14 x 14 inches
- Weight: 9.15 lbs
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