Vehicle Fitment

  • 2015–2020 Audi S3 (AWD, 2.0L Turbo I4, Sedan) — Fitment confirmed for these years and AWD drivetrain only. 2021–2025 coverage unconfirmed at time of listing. :contentReference[oaicite:0]{index=0}

Features

  • S‑Type performance‑tuned stainless steel cat‑back exhaust system
  • Designed with Borla’s straight‑through multi‑core technology for optimized flow and sound
  • Premium T‑304 stainless steel construction for corrosion resistance
  • Factory‑active exhaust valve integration for dynamic tone control
  • Dual polished 3.5″ round rolled angle‑cut tips for enhanced rear styling
  • Mandrel‑bent tubing promotes smooth exhaust gas flow and reduced backpressure
  • Balanced performance sound with aggressive tone yet daily‑friendly driveability
  • Direct bolt‑on installation that uses OEM hangers and mounting points

Specifications

  • Part Number: 140631
  • System Type: S‑Type Cat‑Back Exhaust
  • Main Pipe Diameter: 3.00″ split into dual 2.25″
  • Tip Size: 3.5″ polished round rolled angle‑cut
  • Exit Style: Dual split rear exit
  • Material: T‑304 stainless steel
  • Muffler Type: Straight‑through multi‑core
  • Valve Integration: Designed to work with factory exhaust valves

Included Components

  • 1x Complete cat‑back exhaust system
  • 2x Polished 3.5″ round rolled angle‑cut tips
  • Gaskets, clamps, and all required installation hardware

Product Description

The Borla 140631 S‑Type Cat‑Back Exhaust System is a performance‑engineered exhaust upgrade designed specifically for 2015–2020 Audi S3 models equipped with the 2.0 L turbocharged four‑cylinder and AWD drivetrain. This system enhances the stock exhaust’s flow characteristics with mandrel‑bent stainless steel tubing and Borla’s straight‑through multi‑core muffler design to reduce backpressure and optimize gas velocity. The S‑Type tuning produces a rich, aggressive exhaust tone that adds driving excitement while maintaining everyday‑friendly behavior.

Featuring premium T‑304 stainless steel construction and polished dual 3.5″ rolled angle‑cut tips, the 140631 brings both performance and visual appeal to your Audi’s rear end. The system is designed to work with the factory active exhaust valves, allowing a dynamic sound experience across different driving conditions. Installation is a direct bolt‑on using OEM hangers and hardware, making it straightforward for enthusiasts upgrading from the stock exhaust. Backed by Borla’s Million‑Mile Limited Warranty, this S‑Type cat‑back exhaust is an ideal upgrade for Audi S3 owners seeking improved flow, enhanced tone, and durable, long‑lasting construction.



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