The Invidia Axleback Exhaust (HS22SW4AT4STL) is a performance exhaust component designed for the 2022–2025 Subaru WRX. This section replaces the restrictive factory muffler section enhancing exhaust flow and reducing backpressure.

Key Features

• 3.50″ Exhaust Tips
  Generous 3.5" exhaust tips add style and increased visibility of the system.

• Mandrel-Bent Construction
  Smooth mandrel bends help maintain consistent internal diameter and flow characteristics for efficient gas movement.

• Sturdy Materials & Assembly
  Built from quality materials designed for durability under high temperatures and demanding driving conditions.

• Vehicle-Specific Fitment
  Engineered to integrate with the WRX’s factory exhaust mounting points for a straightforward installation.

Performance Benefits

• Enhanced exhaust flow leading to improved throttle response

• Reduced backpressure for stronger turbo performance
  

• Crisp, freer-breathing engine character when paired with supporting mods

Fitment

• Designed specifically for 2022–2025 Subaru WRX models

This axleback exhaust is ideal for WRX owners seeking a performance-oriented upgrade to their Subaru WRX, whether prepping for bolt-on power gains or as part of a larger build.