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SKU: 306-121-101
Weapon R 2011 Subaru Impreza 2.5L Gunmetal/Black Foam Filter Polished Dual Velocity Secret Weapon Intake
The Weapon R Secret Weapon Intake System replaces the factory airbox on 2011 Subaru Impreza 2.5L models including 2.5i 2.5i Premium and Outback Sport with a high-flow gunmetal/black foam filter and polished aluminum tube. This cold air intake supplies more air to the engine for dyno-tested gains of 11 HP and 12 lb-ft torque at 5800 RPM plus quicker throttle response and aggressive engine sound. Drivers experience noticeable improvements in acceleration and power delivery across the entire RPM range.
Key Features
- Dual Velocity Cone Design: Two-stage cones draw air efficiently at low speeds and high RPM for consistent power delivery across the rev range
- Gunmetal/Black Dry Foam Filter: Traps dirt and debris with 99 percent efficiency while flowing 50 percent more air than OEM filters washable and reusable for long-term performance
- Polished 6061-T6 Aluminum Tube: Mandrel-bent 3 inch diameter tube ensures smooth unrestricted airflow with a durable shine
- Black Powdercoated Heat Shield: Blocks underhood heat to supply cooler denser air charges improving combustion efficiency
- CNC Machined MAF Sensor Housing: Provides precise fitment and secure mounting for reliable sensor readings
Product Notes
- Filter requires cleaning every 30,000 to 50,000 miles depending on driving conditions
- Pre-assembled for quick setup no additional tuning required
- Product weight 7.8 pounds shipping box 22 x 13 x 11 inches
Installation Notes
- Professional installation recommended.
- Bolt-on design takes 60 to 90 minutes with basic hand tools
- Includes all clamps couplers and stainless steel hardware for direct OEM replacement
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011 | Subaru | Impreza | 2.5i |
| 2011 | Subaru | Impreza | 2.5i Premium |
| 2011 | Subaru | Impreza | Outback Sport |
Why Choose Weapon R?
- Trusted since 1999 for high-performance air intakes
- Dyno-tested gains of 11 HP and 12 lb-ft torque at 5800 RPM
- Lifetime limited warranty on tube and heat shield
Frequently Asked Questions
-
Q: Will this intake fit my 2011 Subaru Impreza 2.5L exactly?
A: Yes direct bolt-on fit for 2011 Impreza 2.5i 2.5i Premium and Outback Sport no modifications needed -
Q: What type of filter material is used?
A: Gunmetal/black dry foam filter offers high filtration and airflow washable with Weapon R cleaning kit -
Q: What warranty coverage is provided?
A: Lifetime limited warranty covers defects in the aluminum tube heat shield and components
Shipping & Handling
- Method: UPS or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Secure box 22 x 13 x 11 inches
- Weight: 7.8 lbs
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