Product details

This 3" diameter into dual 2.25" Cat-Back system for the venerable 2008–2014 Subaru WRX STi delivers the classic S-Type sound with no drone inside the vehicle. This race-inspired system 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 power plant 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 O.E. 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’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 T-304 stainless steel construction and dual 3.5" round double-walled rolled-edge polished T-304 stainless steel tips on each side, drivers get the sound and looks they expect from the world’s most winning exhaust. BORLA, 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. The BORLA® sound of power. Its been described as asonic shot of adrenaline. An intoxicating concert ofsteel, gears and combustion that echoes from thespeedways, deserts and highways of the world.The sound of more victory laps than any otherbrand, the BORLA® exhaust note has become the quintessentioal soundtrack of high-performance motoring. And like all good automotive designs there is function behing the form. As any driving enthusiast knows, the sound of an exhaust provides more than just ear candy. Its a communications conduit between car and driver. A link between human and machine. The exhaust sound provides accoustic feedback of engine rpm to aid the driver in critical decisions such as gear selection or throttle input in rev-match shifting. At BORLA®, we understand this concept better than any exhaust manufacturer. Combining patented technology with computer modeling, extensive prototyping and advanced sound analysis tools. BORLA® engineers spend countless hours tuning exhaust systems to best reflect the personality and performance of vehicle applications. The result is an enhanced driving experience. With unrivaled clarity, the BORLA® exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensory feedback of sound. With unrivaled clarity the Borla exhaust note can help a driver stay within the powerband through a difficult section, using the exciting sensry feedback of sound. S-Type Cat-Back Exhaust System 2008-2014 Subaru Impreza WRX STI/ 2011-2014 Subaru Impreza WRX Hatchback 2.5L 4 Cyl. Turbo Manual Transmission All Wheel Drive. Cat-Back Exhaust System - S-Type Cat-Backâ„¢ System

Manufacturer fitment & guides

Check 140312 against the manufacturer’s application information below.

• Borla manufacturer vehicle catalog ↗

Part-specific notes

• Emissions acknowledgement required before purchase.
• California Proposition 65: Y