2008-2014 Subaru WRX Cat-Back Exhaust System S-Type Part # 140312

Tips: Dual Round Rolled Angle-Cut Long

Fits these Vehicles:

2008-2014 Subaru Impreza WRX STi/ 2011-2014 Subaru Impreza WRX Hatchback 2.5L 4 Cyl. Turbo Manual Transmission All Wheel Drive.

Price : $1,418.99
Northern Performance
Buy from Borla (USA credit cards only):
International customers contact us for shipping quote.

BORLA® Performance offers a quad-exit Cat-Back™ 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® engineers upgraded the STi‘s exhaust plumbing from 2.5" to 3" in diameter. The resulting increased airflow through the turbocharged powerplant provides horsepower gains of 7% - 10%.

Drivers negotiating terrain from rally course jumps to shopping mall speedbumps will appreciate how BORLA®‘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 back of the vehicle aerodynamics and improves appearance by reducing clutter.

Besides being higher, it‘s lighter. Thanks to BORLA®‘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 STi‘s distinctive rumbling gurgle with the rich bass of BORLA®‘s trademark sound of power. Combined with high-quality austenitic stainless steel construction and 3.5" 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®, the original pioneers of high-quality T-304 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.


This product in the physical form it is sold does not present a hazard. However, operations including, but not limited to welding, brazing, or thermal cutting can expose you to chemicals including Chromium, Nickel, Cobalt, Arsenic, Cadmium and Lead which are known to the State Of California to cause cancer, birth defects and other reproductive harm. For more information go to

View All

Available for this vehicle

Technical Specs
Pipe Diameter Tip Size Tip Exit
Single 3" into Dual 2.25" 3.5" Dual Split Rear Exit
Installation Instructions Shipping Info
Boxed Weight Box Size
45 45 x 11 x 31