Borla 08-14 Subaru STi / 11-14 WRX Catback Exhaust

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.