Sold out
Click to zoom in
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
Air Intake Systems
Air intake systems for Hellcat, Trackhawk, TRX, HEMI, and import performance platforms are stocked at Black Ops Auto Works. Shop cold air intakes, short ram intakes, air boxes, intake elbows, mass air flow sensors, scoops, snorkels, and silicone couplers for street cars, trucks, Jeeps, and supercharged Mopar builds. Every intake system is filterable by vehicle platform, engine, and intake style so the correct part ships the first time. Black Ops Auto Works carries 4,427 air intake SKUs across cold air intakes, short ram intakes, and supporting components. What This Category Covers An air intake system pulls outside air into the engine and filters it before combustion. Upgrading the factory intake with a cold air intake, short ram intake, or carbon fiber system can improve airflow, throttle response, induction sound, and horsepower potential on compatible applications. Cold Air Intakes vs Short Ram Intakes Cold air intakes route the filter away from engine bay heat for cooler, de...
View Air Intake Systems Products
Cold Air Intakes
Shop cold air intakes, short ram intakes, closed-airbox intake systems, replacement air filters, intake tubes, and MAF housings from K&N, AEM, aFe Power, Airaid, S&B Filters, Injen, Roush, Volant, Corsa, Mishimoto, HPS Performance, Cobb Tuning, JLT, Vararam, Steeda, and other performance intake brands. Find full open-element cold air intakes, sealed-airbox systems, dry and oiled air filters, replacement drop-in filter panels, MAF sensor housings, and complete intake tube kits. Cold air intakes for domestic muscle, sport-compact tuners, diesel trucks, off-road 4x4, Euro performance, and modern sport SUVs Mustang, Camaro, Challenger, Charger, F-150, Silverado, Ram, Tundra, Tacoma, 4Runner, Wrangler, Bronco, Cummins, Duramax, Power Stroke, WRX/STi, Civic Type R, GR86, Supra, GR Corolla, BMW M2/M3/M4, Golf R, and hundreds of additional platforms. Filter by vehicle, intake style (open element, closed airbox, short ram, tube kit), filter media (oiled cotton, dry synthetic), tun...
View Cold Air Intakes Products