Borla 140312 Cat-Back Exhaust System for 2008-2014 Subaru Impreza WRX / STI (3-inch / Quad Polished Tips)

Fits 2008-2014 Subaru Impreza WRX and WRX STI models. This Borla Performance cat-back exhaust (PN 140312) is engineered to replace the restrictive factory system with a high-flow, 3-inch diameter T-304 stainless steel setup. By upgrading the piping from 2.5 inches to 3 inches and utilizing a patented straight-through muffler design, this system reduces backpressure to unlock the full potential of the turbocharged EJ-series engine, especially on vehicles with Stage 1 or Stage 2 ECU tuning.

Designed for both street and performance use, Borla fabricators tucked the muffler assembly 1.75 inches higher than the original equipment (OE) unit. This provides crucial ground clearance for lowered vehicles or rough terrain while improving rear aerodynamics. The system also reduces vehicle weight by approximately 8 lbs compared to stock. It features quad 3.5-inch double-walled, rolled-edge polished tips that deliver the signature Borla rumble without internal baffles or chambers that rob power.

• Manufacturer Part Number: 140312
• System Type: Cat-Back
• Piping Diameter: 3.0" (76mm)
• Tip Diameter: 3.5" Quad Exit
• Material: T-304 Stainless Steel
• Muffler Design: Patented straight-through technology
• Clearance: 1.75" gain over factory exhaust
• Weight Reduction: Approx. 8 lbs lighter than OE
• Installation: Bolt-on with included hardware