A3|S3 Performance Parts & Upgrades | ModBargains

Shop By Chassis / Year

The Audi A3 and high-performance S3 models combine compact luxury with sporty performance and advanced German engineering. Known for their responsive turbocharged engines, refined interiors, and available Quattro all-wheel-drive systems, the A3 and S3 platforms offer an excellent balance of everyday practicality and enthusiast-level performance potential. Over multiple generations, the A3 lineup has evolved with improved technology, lightweight chassis development, and increasingly powerful turbocharged engines.

Thanks to strong aftermarket support and shared performance architecture with other Volkswagen Group vehicles, the Audi A3 and S3 platforms respond exceptionally well to upgrades such as ECU tuning, turbocharger enhancements, suspension improvements, wheels, and braking systems.

At ModBargains, we offer a wide selection of performance parts and upgrades for the Audi A3 and S3, including performance exhaust systems, suspension upgrades, forged wheels, brake kits, and aerodynamic styling components designed to enhance both performance and appearance.


8Y (2021+ Audi A3 / S3)

The fourth-generation Audi A3 and S3 (8Y) feature a redesigned platform with sharper styling, updated digital technology, and improved chassis dynamics. Built on the Volkswagen Group MQB Evo architecture, the 8Y generation benefits from improved structural rigidity and more advanced electronic systems.

The A3 is powered by a 2.0L turbocharged inline-four engine, while the S3 features a higher-output version paired with Audi’s Quattro all-wheel-drive system for enhanced traction and performance.

Key features:

  • 2.0L turbocharged inline-four engine
  • Quattro all-wheel-drive system (S3)
  • 7-speed dual-clutch S tronic transmission
  • MQB Evo lightweight platform architecture
  • Fully digital Audi Virtual Cockpit

Popular aftermarket upgrades include:

  • High-performance cat-back exhaust systems and downpipes
  • ECU tuning and turbo performance upgrades
  • High-flow intake systems and upgraded intercoolers
  • Adjustable coilover suspension systems
  • Lightweight forged wheels and performance tire packages
  • Carbon fiber aerodynamic components
  • Big brake kits and track-focused braking upgrades

The 8Y platform provides strong performance potential, particularly with turbocharger upgrades and ECU tuning.


8V (2013–2020 Audi A3 / S3)

The third-generation Audi A3 and S3 (8V) introduced the MQB platform, significantly improving weight distribution and chassis dynamics. The S3 variant features a powerful turbocharged engine combined with Quattro all-wheel drive, delivering strong acceleration and excellent handling capability.

Performance highlights:

  • 2.0L turbocharged inline-four engine
  • Quattro all-wheel-drive system (S3)
  • 7-speed dual-clutch S tronic transmission
  • Lightweight MQB platform architecture

Common upgrades include:

  • Performance exhaust systems and upgraded downpipes
  • ECU tuning and turbocharger upgrades
  • Upgraded intercoolers and intake systems
  • Coilover suspension systems and lowering springs
  • Forged wheels and performance tire packages
  • Brake upgrades and improved braking components

The 8V generation remains a popular platform for performance builds due to its strong turbocharged engine and excellent aftermarket support.


8P (2004–2012 Audi A3)

The second-generation Audi A3 (8P) introduced improved styling, modern interior technology, and more powerful engine options. Built on the Volkswagen Group platform shared with the Golf and other performance models, the 8P offers a strong foundation for aftermarket tuning.

Key features:

  • Turbocharged inline-four engine options
  • Available Quattro all-wheel-drive system
  • Compact luxury hatchback platform
  • Improved chassis rigidity and suspension design

Popular upgrades include:

  • Turbocharger upgrades and ECU tuning
  • Performance intake and exhaust systems
  • Coilover suspension systems
  • Lightweight wheels and performance tires
  • Brake upgrades and improved braking components

The 8P A3 remains a versatile platform for enthusiasts seeking both practicality and performance potential.


8L (1996–2003 Audi A3)

The original Audi A3 (8L) introduced the compact luxury hatchback concept to the Audi lineup. Featuring turbocharged engines and optional Quattro all-wheel drive, the 8L platform delivered strong performance and everyday usability in a compact package.

Performance highlights:

  • Turbocharged inline-four engine options
  • Available Quattro all-wheel-drive system
  • Compact hatchback platform
  • Strong aftermarket tuning potential

Common upgrades include:

  • ECU tuning and turbocharger upgrades
  • Performance intake and exhaust systems
  • Coilover suspension systems
  • Lightweight wheels and performance tires
  • Brake upgrades and improved braking components

The 8L A3 helped establish Audi’s compact performance lineup and remains a popular platform among enthusiasts.


Shop Audi A3 & S3 Performance Parts at ModBargains

ModBargains offers a wide selection of performance parts and accessories for the Audi A3 and S3 platform, including:

  • Performance exhaust systems
  • ECU tuning and turbo performance upgrades
  • Coilovers and suspension upgrades
  • Big brake kits and braking components
  • Forged wheel and tire packages
  • Carbon fiber aerodynamic components
  • Interior and exterior styling upgrades

From the original 8L platform to the modern 8Y generation, the Audi A3 and S3 deliver a combination of luxury, practicality, and strong turbocharged performance. Upgrade your Audi A3 or S3 with premium aftermarket parts from ModBargains to enhance handling, styling, and overall driving performance.