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SKU: 715315-BK
COBB SF Intake + SF Airbox – 2015-2017 Subaru WRX STi
The COBB SF Intake + integrated SF Airbox in black for 2015-2017 Subaru WRX STi (EJ257 turbo). Composite intake body, 16-gauge aluminum airbox, CFD velocity stack, airflow straightener grid, and pre-oiled custom filter deliver optimal flow, precise MAF readings, reduced turbulence, cooler intake temps, and significant power gains the ultimate intake upgrade for any 2015-2017 STi build seeking maximum performance, smooth drivability, and 50-state legality (CARB EO applicable).
Key Features
- Integrated SF Airbox + Intake – Combines short ram flow with cold air benefits using factory snorkel
- CFD Velocity Stack & Airflow Straightener – Eliminates turbulence and dead spots for accurate MAF readings
- High-Temperature Plastic Composite – Lightweight heat-rejecting material keeps IATs cooler than metal designs
- Pre-Oiled Custom Filter – Cleanable, reusable conical cloth element for maximum airflow and protection
- 50 State Legal – CARB EO approved; no additional tuning required with Accessport OTS maps
| Spec | Detail |
|---|---|
| Part Number | 715315-BK |
| Brand | COBB Tuning |
| Type | SF Intake + SF Airbox System (Black) |
| Filter Type | Pre-Oiled, Cleanable, Reusable Custom Conical Cloth |
| Material | High-Temperature Plastic Composite (Intake) / 16 Gauge Aluminum (Airbox) |
| Compatibility | 2015-2017 Subaru WRX STi (EJ257 Turbo) |
| Emissions | 50 State Legal (CARB EO applicable) |
| Country of Origin | United States |
| Warranty | COBB Limited Warranty |
Whats Included
- Complete SF Intake + SF Airbox assembly (black finish)
- Pre-oiled custom conical cloth air filter
- 4-ply steel reinforced silicone post-MAF hose
- Mounting hardware and instructions
Product Notes
- Direct bolt-on system utilizing factory snorkel for cold air feed
- Eliminates hot engine bay air ingestion and rainwater issues common in other intakes
- No additional tuning required with Accessport OTS maps optimized for SF Intake
Installation Notes
- Simple bolt-on replacement
- Estimated time: 1–2 hours
- Professional installation recommended for proper MAF alignment and fitment
This Part Fits
| Year Range | Make | Model | Trim / Engine | Notes |
|---|---|---|---|---|
| 2015-2017 | Subaru | WRX STi | All trims | EJ257 Turbo – SF Intake + Airbox |
Why Choose COBB SF Intake + Airbox?
- #1 choice for no-tune, high-flow intake on EJ257 turbo Subarus
- Designed & manufactured in the United States
- Chosen by WRX STi owners for cooler IATs, smoother power, and reliable performance
Frequently Asked Questions
-
Q: Does this fit my 2016 Subaru WRX STi?
A: Yes, direct fit for 2015-2017 Subaru WRX STi with EJ257 turbo engine. -
Q: Do I need a tune?
A: No additional tuning required with Accessport OTS maps optimized for SF Intake. -
Q: Will it increase power?
A: Yes, improved flow and cooler IATs enhance throttle response and power.
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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