SKU: SUB00001IA
COBB SF Intake + Airbox – 2004-2007 Subaru WRX STi / 2002-2007 WRX / 2004-2008 Forester XT
The COBB SF Intake + integrated Airbox for 2004-2007 Subaru WRX STi, 2002-2007 WRX, and 2004-2008 Forester XT. Custom conical cloth filter, CFD-designed velocity stack, airflow straightener grid, and high-temperature plastic composite construction deliver optimal flow, precise MAF readings, reduced turbulence, cooler intake temps, and no tuning required the ultimate intake upgrade for any EJ25 turbo build seeking maximum performance, smooth power delivery, and 50-state legality (CARB EO D-660-77).
Key Features
- Integrated Airbox + Intake – Combines short ram and cold air benefits without negatives
- CFD Velocity Stack & Airflow Straightener – Eliminates turbulence for accurate MAF readings and smooth flow
- Custom Conical Cloth Filter – Pre-oiled, high-flow filter for maximum airflow and protection
- High-Temperature Plastic Composite – Lightweight, heat-rejecting material keeps IATs cooler than metal designs
- No Tuning Required – Works perfectly with stock MAF and ECU; 50-state legal (CARB EO D-660-77)
| Spec | Detail |
|---|---|
| Part Number | SUB00001IA |
| Brand | COBB Tuning |
| Type | SF Intake + Airbox System |
| Filter Type | Custom Conical Cloth (Pre-Oiled) |
| Material | High-Temperature Plastic Composite |
| Compatibility | 2004-2007 Subaru WRX STi / 2002-2007 WRX / 2004-2008 Forester XT (EJ25 Turbo) |
| Emissions | 50 State Legal (CARB EO D-660-77) |
| Country of Origin | United States |
| Warranty | COBB Limited Warranty |
Whats Included
- Complete SF Intake + Integrated Airbox
- Custom conical cloth air filter (pre-oiled)
- Post-MAF hose
- Mounting hardware and instructions
Product Notes
- Direct bolt-on replacement; no additional tuning needed
- Combines cold air benefits with short ram flow without water ingestion risks
- Separates rainwater from intake air for reliability
Installation Notes
- Simple bolt-on installation
- Estimated time: 1–2 hours
- Professional installation recommended for proper MAF alignment and fitment
This Part Fits
| Year Range | Make | Model | Trim / Engine | Notes |
|---|---|---|---|---|
| 2004-2007 | Subaru | WRX STi | All trims | EJ25 Turbo |
| 2002-2007 | Subaru | WRX | All trims | EJ25 Turbo |
| 2004-2008 | Subaru | Forester XT | All trims | EJ25 Turbo |
Why Choose COBB SF Intake + Airbox?
- #1 choice for no-tune, high-flow intake on EJ25 turbo Subarus
- Designed & manufactured in the United States
- Chosen by WRX/STi and Forester XT owners for smooth power, cooler IATs, and 50-state legality
Frequently Asked Questions
- Q: Does this fit my 2006 Subaru WRX STi?
A: Yes, direct fit for 2004-2007 WRX STi, 2002-2007 WRX, and 2004-2008 Forester XT with EJ25 turbo. - Q: Do I need a tune?
A: No, designed to work perfectly with stock MAF and ECU no additional tuning required. - Q: Will it increase power?
A: Yes, improved flow and cooler IATs enhance throttle response and power, especially with bolt-ons.
Shipping & Handling
- Method: Ground UPS or FedEx
- Availability: Ships in 24 hours – order now for fast delivery
- Packaging: Official COBB retail box
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