Borla Cat-Back Exhaust System - S-Type (140312)

Borla Cat-Back Exhaust System - S-Type (140312)Borla S Type Cat Back 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. (140312) Upgrading your factory exhaust system to a Borla stainless steel performance exhaust system with a more efficient and less restrictive design can improve sound (adding more enjoyment driving your vehicle) and increase engine horsepower and torque throughout the RPM range

Borla S-Type Cat-Back 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. (140312)

Upgrading your factory exhaust system to a Borla stainless steel performance exhaust system with a more efficient and less restrictive design can improve sound (adding more enjoyment driving your vehicle) and increase engine horsepower and torque throughout the RPM range (allowing quicker acceleration to pass a vehicle or get to highway speeds quicker). Borla offers Axle Back exhaust systems, Cat back exhaust systems, and for select Competition-Use-Only vehicles, we offer long tube headers to replace your exhaust manifold for the best performance and sound.

The Borla "Cat Back™" name implies the exhaust system is located behind the factory catalytic converter where there factory emissions remain untouched and vehicle stays emissions compliant. This remains distinct from the Axle Back exhaust system that is located behind the rear axle. Alex Borla coined the phrase 'Cat Back' and introduced the Cat Back performance exhaust in 1978, a bolt-on replacement performance exhaust system requiring no welding, thus being secured using the factory hanger locations.

Borla Cat Back exhaust systems use engine-specific (not universal) mufflers that are designed, tested, and optimized specifically for a particular year/make/model vehicle. Borla Cat Back systems increase the overall sound level & performance. Vehicles that don't have a factory service-point require "cutting" the factory exhaust system before installing a Borla Cat Back performance exhaust system. Borla includes instructions where to make this cut and includes the hardware to complete the installation. Many of today's modern vehicles have a factory service-point in the exhaust system (flange or slip-fit) located in the exhaust tubing behind the catalytic converter. A Borla Cat Back performance exhaust system replaces the factory exhaust system (behind this service-point) following the same exhaust path and secured using the original vehicle hangars and rubber isolators. Borla pioneered the automotive exhaust aftermarket in exhausts constructed in aircraft grade 304 stainless steel tubing, a material with higher content of carbon & nickel that won't rust or corrode.

Features:

• Horsepower and Torque Increased by 7 – 10%
• Increased exhaust flow for better performance
• Better fuel economy at cruising speeds
• The most aggressive sound of any Borla system
• Custom designed for each application
• Patented straight-through, multi-core muffler design reduces backpressure while absorbing sound waves
• Mandrel-bent stainless steel tubes with diameters optimized for reduced restriction while maintaining exhaust gas speed
• Made from the finest austenitic stainless steel for long-lasting durability
• All welded construction
• Includes everything required for installation, including detailed instructions
• Backed by the exclusive Borla Million-Mile warranty
• Proudly made in the USA more

BORLA Performance offers a uad-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%. HaR & Dcore enthusiasts who add Stage 1 or 2 chip upgrades will find this boost to the STi'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 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 double-walled rolled-edge polished tips, 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.