Borla 140312 S-Type Cat-Back Exhaust for 2008-2014 Subaru WRX STI and 2011-2014 WRX Hatchback

Borla(r) Performance offers a quad-exit Cat-Back(tm) exhaust for the venerable 2008-2014 Subaru WRX STI. This race-inspired system (PN140312) checks all the boxes on every Subaru enthusiasts hit list, taking this flagship to an even higher realm, of performance. For starters, Borla(r) engineers upgraded the Stir's exhaust plumbing from 2.5" to 3" in diameter. The resulting increased airflow through the turbocharged powerplant provides horsepower gains of 7% - 10%. Hardcore enthusiasts who add Stage 1 or 2 chip upgrades will find this boost to the Stir's lung capacity vital to unlocking the ECU's full potential. Drivers negotiating terrain from rally course jumps to shopping mall speedbumps will appreciate how Borla(r)'s R&D fabricators found room to tuck the system muffler higher than the OE exhaust, providing a 1.75" clearance gain. This additional room also enhances rear-section aerodynamics and improves appearance by reducing clutter. Besides being higher, it's lighter. Thanks to Borla(r)'s patented straight-through design that eliminates power-robbing baffles and chambers, the STI sheds approximately 8 lbs., making it a bit leaner meaner in a class where every bit counts. True to form, the exhaust amplifies and enhances the Stir's distinctive rumbling gurgle with the rich bass of Borla(r)'s trademark sound of power. Combined with high-quality T-304 stainless steel construction and double-walled rolled-edge polished T-304 stainless steel tips, drivers get the sound and looks they expect from the world's most winning exhaust. Borla(r), the original pioneers of high-quality stainless steel free-flow exhaust, utilizes patented award and race winning technology to deliver quality, sound, and performance gains. All with an easy bolt-on installation, and backed by a solid Million-Mile Warranty on all street systems. S-Type Cat-Back(tm) Exhaust System For 2008-2014 Subaru Impreza WRX STI/ 2011-2014 Subaru Impreza WRX Hatchback 2.5L 4 Cyl.. Turbo Manual Transmission All Wheel Drive. Million Mile Warranty 2008-2014 Subaru Impreza WRX STI/ 2011-2014 Subaru Impreza WRX Hatchback 2.5L 4 Cyl.. Turbo Manual Transmission All Wheel Drive.

Upgrade your Subaru’s exhaust performance and sound with the Borla 140312 S-Type Cat-Back Exhaust System. Designed for the 2008-2014 Subaru Impreza WRX STI and 2011-2014 Subaru Impreza WRX Hatchback, this race-inspired system replaces the factory exhaust with larger 3-inch tubing to improve airflow from the turbocharged engine. The increased exhaust capacity can support horsepower gains of approximately 7% to 10%, helping performance-focused drivers get more from factory or upgraded engine management systems.

Borla engineers designed the system with a higher-mounted muffler that provides additional ground clearance compared with the original equipment exhaust. The elevated routing helps reduce underbody clutter while improving rear-section appearance and aerodynamics. Borla’s patented straight-through muffler design minimizes airflow restriction and eliminates power-robbing internal baffles and chambers, helping reduce vehicle weight by approximately 8 pounds while producing the deep, aggressive sound associated with Borla’s S-Type performance exhaust.

Constructed from durable T-304 stainless steel, the Borla 140312 system is engineered for long-term corrosion resistance and dependable performance. Double-wall, rolled-edge, polished stainless steel exhaust tips provide a clean finished appearance at the rear of the vehicle. The system is designed for easy bolt-on installation and is backed by Borla’s Million-Mile Warranty. This application is intended for vehicles with a 2.5L turbocharged four-cylinder engine, manual transmission, and all-wheel drive. Professional installation is recommended to verify alignment and clearance.

What’s Included: Borla S-Type cat-back exhaust system, muffler, piping, polished exhaust tips, and installation hardware as supplied by the manufacturer.

Fitment: 2008-2014 Subaru Impreza WRX STI; 2011-2014 Subaru Impreza WRX Hatchback; 2.5L turbocharged four-cylinder engine; manual transmission; all-wheel drive. This product may be subject to applicable emissions regulations and California compliance requirements.

Features:

• 3-inch Exhaust Tubing: Increases exhaust flow capacity for improved turbocharged engine breathing and performance potential.
• Straight-Through S-Type Muffler: Reduces restriction while delivering Borla’s deep, aggressive exhaust tone.
• Higher Muffler Position: Provides approximately 1.75 inches of additional ground clearance compared with the original equipment exhaust.
• T-304 Stainless Steel Construction: Offers durable corrosion resistance, polished appearance, and long-term performance backed by Borla’s Million-Mile Warranty.

Fitments:
2008 Subaru Impreza WRX STI
2009 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI Special Edition
2011 Subaru Impreza WRX
2011 Subaru Impreza WRX STI
2011 Subaru Impreza WRX STI Limited
2012 Subaru Impreza WRX
2012 Subaru Impreza WRX STI
2013 Subaru Impreza WRX
2013 Subaru Impreza WRX STI
2013 Subaru Impreza WRX STI Limited
2014 Subaru Impreza WRX
2014 Subaru Impreza WRX STI
2014 Subaru Impreza WRX STI Limited

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1