2015-2021 Subaru WRX/STI AFD F1 Valved Catback Exhaust System

Engineered for Sound. Built for Speed.

The AeroflowDynamics F1 Valved Catback Exhaust System is the ultimate solution for WRX and STI enthusiasts who want uncompromising performance, premium weight reduction, and an exhaust note that commands attention. Crafted from aerospace-grade materials, this system is engineered for optimized flow, increased horsepower, and an unmistakable sound.

Why You'll Love It

• Over 40lbs Lighter Than OEM – Massive weight reduction improves power-to-weight ratio and vehicle dynamics.
• Grade 5 Titanium or Stainless Steel – Choose ultra-light titanium for max performance or stainless for rugged durability.
• Optional Valve Control – Toggle between aggressive or toned-down exhaust sound with a valved setup.
• Dyno-Tested Performance Gains – Improved exhaust flow increases horsepower and torque across the rev range.
• Signature Exhaust Note – Crisp, raw, and race-inspired — especially with valves open.
• Handcrafted Quality – Every system is carefully hand-welded and built to withstand high heat and long-term abuse.

Fitment

• 2015–2021 Subaru WRX/STI

Production Lead Time

This AeroFlow Dynamics exhaust system is built to order to ensure the highest level of craftsmanship, quality, and fitment. Production begins immediately after your order is placed.