Borla 13-15 Audi S3 S-Type Dual Round Rolled Catback Exhaust

This Borla cat-back exhaust system is built for the verified 2015-2020 Audi S3 Premium Plus application listed below. Select it by exact manufacturer part number 140631 and confirm the full engine, drivetrain, body, wheelbase, factory-exhaust, and Borla application notes before ordering.

Key Features

• T-304 Stainless Steel Construction: Premium austenitic material outperforms T-400 series for lasting durability and corrosion resistance in all conditions.
• Valved System: Electronic valves allow on-demand sound adjustment from quiet to aggressive roar, compatible with factory controls.
• Polished 3.5″ Dual Round Rolled Tips: T-304 stainless steel finish adds refined style with precise CNC manufacturing for perfect fit.
• Direct bolt-on replacement; no cutting or welding required for stock cat-back swap.
• Over 40 years pioneering stainless steel exhaust for street and racing.
• Full T-304 stainless steel tubing and mufflers with 3.5-inch polished dual round rolled tips for durability and style.

Fitment

Specifications

What’s Included

One new Borla product identified by manufacturer part number 140631. 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

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• Borla 15-16 Cadillac Escalade ESV 6.2L Auto Trans Dual Round Rolled Truck Side Exit Catback Exhaust

Browse the Borla collection for related exhaust systems and components.

Frequently Asked Questions

Will this Borla part fit my 2015-2020 Audi S3 Premium Plus?
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.