Catback Exhaust for 2011-2014 WRX & STI

Borla Catback Exhaust, made to fit the 2008-2014 Subaru STI / 2011-2014 WRX. 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.

Product Details

For starters, Borla® engineers upgraded the Stir's exhaust plumbing from 2.5" to 3" in diameter.

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Features & Specs

• 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®'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®'s patented straight-through design that eliminates power-robbing baffles and chambers, the STI sheds approximately 8lbs., making it a bit leaner meaner in a class where every bit counts.
• Warranty: Please contact us for warranty details on this product.
• Brand: Borla
• Part number: BOR140312

Straight from SubiSpeed

Catback systems change how your car sounds more than how fast it is. Check emissions rules where you live before you swap anything upstream of the cat.