This Borla cat-back exhaust system is built for the verified 2022-2024 Subaru WRX application listed below. Select it by exact manufacturer part number 140931 and confirm the full engine, drivetrain, body, wheelbase, factory-exhaust, and Borla application notes before ordering.

Key Features

• Single Passenger-Side Rear Exit: 3-inch diameter piping flows into a 4.5-inch brushed T-304 stainless steel tip with laser-cut Borla logo and extended core for a custom appearance.
• T-304 Stainless Steel Construction: Premium material outperforms T-400 series with superior corrosion resistance, durability, and mandrel bends for maximum exhaust flow and power.
• Polyphonic Harmonizer Technology: Patented multi-core muffler with varying pipe diameters and lengths creates harmonized exhaust notes for a rich, full-bodied ATAK sound without drone.
• Straight-Through Multi-Core Design: Boosts exhaust velocity for added horsepower, drivability, and fuel economy while maintaining precise CNC-manufactured fitment.
• Direct bolt-on replacement; no cutting or welding required for stock configurations.
• Bolt-on design uses factory hangers and clamps; 2-3 hours typical labor time.

Fitment

Specifications

What’s Included

One new Borla product identified by manufacturer part number 140931. Clamps, hangers, gaskets, tips, pipes, tools, and companion parts are included only when expressly listed for this exact part number.

About Borla

Borla develops stainless-steel exhaust systems, mufflers, tips, pipes, and related components for vehicle-specific and universal performance applications. Product selection remains exact-application and exact-part-number specific.

Related Borla Products

• Borla 22-24 Nissan Z 2.5in ATAK Cat Back Exhaust 4.5in Tip – Carbon Fiber Black Anodized
• Borla 15-16 Subaru WRX / STI 2.5L S-Type Cat-Back Exhaust Quad Rd RL Tips
• Borla 21-22 Jeep Wrangler Rubicon 392 6.4L V8 AT 4WD 4DR ATAK Cat-Back Exhaust (Stainless)

Browse the Borla collection for related exhaust systems and components.

Frequently Asked Questions

Will this Borla part fit my 2022-2024 Subaru WRX?
That application is listed, but confirm the engine, drivetrain, body or cab style, wheelbase, factory exhaust layout, tip opening, and every Borla application note before ordering.

Will this change require an engine tune?
A cat-back, axle-back, tip, muffler, or post-catalyst component usually does not require tuning, but confirm the exact application, emissions configuration, oxygen-sensor locations, and local requirements before installation.

What should I inspect before installation?
Check the shipping carton and components against the exact part number, then inspect clamps, hangers, gaskets, mating flanges, clearances, tip alignment, and required reused factory hardware before removing the original exhaust.

Installation Instructions

Follow the current Borla instructions and vehicle service information for this exact part number. Let the exhaust cool, support the vehicle safely, compare all parts before removal, protect sensors and wiring, use the specified clamps and torque values, align all joints and tips without preload, confirm body and suspension clearance, check for leaks, and retorque after the first heat cycles. Professional installation is recommended.