-31%
Click to zoom in
SKU: HS11STIGM4SS
Invidia 11-14 Subaru WRX/STI Sedan Gemini/R400 Single Layer Quad Stainless Steel Tip Catback Exhaust
Invidia HS11STIGM4SS Gemini/R400 catback exhaust delivers enhanced exhaust flow for 2011-2014 Subaru Impreza WRX and STI Sedan models. This full catback system replaces the stock exhaust from the catalytic converter back with mandrel-bent 3-inch piping and quad 4-inch single layer stainless tips. Drivers gain noticeable horsepower increases up to 12 rear wheel horsepower along with a deep aggressive exhaust note without excessive cabin drone.
Key Features
- T304 Stainless Steel Construction: Premium SUS304 piping and tips resist corrosion for long-lasting performance and mirror-polished finish.
- Mandrel-Bent 3-Inch Piping: Smooth uninterrupted bends improve exhaust scavenging for better throttle response and power delivery across the RPM range.
- Quad 4-Inch Single Layer Tips: Angled stainless steel tips create a wide stance aggressive stance and amplify the Gemini series refined deep tone.
- Bolt-On Direct Fit Design: Engineered for easy replacement using factory mounting points and hangers on WRX/STI sedans.
- Power and Sound Gains: Reduces backpressure for dyno-proven torque and HP increases with a throaty growl on acceleration.
Product Notes
- Designed for sedan models only check vehicle submodel for compatibility.
- Clean periodically with mild soap to maintain tip finish.
- Ships fully assembled in protective packaging freight options available for heavy item.
Installation Notes
- Professional installation recommended.
- Bolt-on system requires basic tools and jack stands complete in 2-4 hours.
- Compatible with factory catalytic converter and O2 sensors no cutting or welding needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2014 | Subaru | Impreza | WRX |
| 2011-2014 | Subaru | Impreza | WRX Limited |
| 2011-2014 | Subaru | Impreza | WRX Premium |
| 2011-2014 | Subaru | Impreza | WRX STI |
| 2011-2014 | Subaru | Impreza | WRX STI Limited |
Why Choose Invidia?
- Proven track record in JDM performance exhausts used by track and street enthusiasts worldwide.
- High-flow designs backed by real-world dyno testing for Subaru applications.
- Precision TIG-welded construction ensures leak-free fitment and durability.
Frequently Asked Questions
-
Q: Does this fit 2011-2014 WRX/STI hatchback models?
A: No this HS11STIGM4SS is engineered exclusively for sedan chassis confirm your body style before purchase. -
Q: What material is used for the piping and tips?
A: Full T304 SUS304 stainless steel throughout for superior heat resistance and polished appearance. -
Q: What warranty coverage applies?
A: Limited lifetime warranty against manufacturing defects when installed properly register online for coverage.
Shipping & Handling
- Method: Ground freight or truck shipping
- Availability: In stock - ships same or next business day
- Packaging: Single large box dimensions 52 x 18 x 18 inches
- Weight: 52 lbs
Catback
A catback exhaust system replaces everything from the catalytic converter back, covering the mid pipe, muffler, and tailpipe section in one bolt on upgrade. This collection covers catback systems for trucks, Jeeps, muscle cars, imports, and performance SUVs, giving you a straightforward way to improve sound, exhaust flow, and rear end styling without touching the factory catalytic converters or front pipe. Catback systems are available in stainless steel and titanium construction, with dual rear exit, single exit, and quad tip configurations, and a range of sound levels from mild touring tone to aggressive track character. Whether you want a deeper daily driver sound or a full track ready exhaust note, you will find a matched system for your platform here. What This Category Covers This collection includes complete catback exhaust systems, cat-back kits, dual rear exit systems, axle back adjacent catback upgrades, stainless steel and titanium exhaust systems, and street, tourin...
View Catback Products
Exhaust Systems
Performance exhaust systems for cars, trucks, SUVs, and Jeeps are stocked at Black Ops Auto Works. Shop cat-back systems, axle-back systems, turbo-back systems, headers, downpipes, mid-pipes, mufflers, resonators, catalytic converters, exhaust tips, exhaust valve controllers, oxygen sensors, exhaust brakes, and motorcycle and powersports exhausts for Mustang, Camaro, Challenger, Corvette, Silverado, and Super Duty platforms. Every product is filterable by exhaust position, material, pipe diameter, and vehicle year, make, model, and trim so the correct fitment ships the first time. Black Ops Auto Works carries 7,441 exhaust SKUs across every position of the exhaust system. What This Category Covers Exhaust upgrades change sound, appearance, and in some cases power. Exhaust fitment depends on engine, drivetrain, and factory exit position, so confirm the exact platform before ordering any exhaust component. Exhaust Position Cat-back, axle-back, turbo-back, and header-back systems e...
View Exhaust Systems Products
Invidia
Invidia for Subaru WRX, STI, BRZ, Honda Civic and Type R, Mitsubishi EVO, Nissan 350Z, Toyota GR Corolla, Supra, GT-R, and Volkswagen GTI builds are stocked at Black Ops Auto Works. Shop N1, Q300, R400, Gemini, cat-back, axle-back, front pipe, downpipe, J-pipe, and mid-pipe exhaust components. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 221 Invidia SKUs across vehicle-specific performance categories. About Invidia Invidia focuses on vehicle-specific stainless steel and titanium exhaust systems for Japanese and import sport platforms. Its catalog covers refined street sound and aggressive track-inspired options, with proven applications for turbocharged Subaru, Honda, Mitsubishi, Nissan, Toyota, and Volkswagen vehicles. Vehicle-Specific Selection Use the application details on each listing to narrow the selection to the exact platform. Product availability and specifications ...
View Invidia Products