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  • AeroflowDynamics 2015 - 2021 WRX/STI AFD F1 Valved Catback Exhaust - JDMuscleCat Back Exhaust SystemVA-F1-T-VALVECATBACK-DXTitanium
  • AeroflowDynamics 2015 - 2021 WRX/STI AFD F1 Valved Catback Exhaust - JDMuscleCat Back Exhaust SystemVA-F1-SS-VALVECATBACK-DXStainless Steel

AeroflowDynamics

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AFD F1 Valved Cat-Back Exhaust

Fits: 15-21 WRX/STI

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Auto Parts Store of the Year 2026

AeroflowDynamics AFD F1 Valved Cat-Back Exhaust
Fits: 15-21 WRX/STI
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Fitment

Please Note: Fits 2015-2021 Subaru WRX/STI (VA chassis; structured buckets 2015-2017 / 2018-2021 for WRX and WRX STI - legacy fitment_info contained invalid '2015-2021' buckets, corrected). Grade 5 titanium or stainless steel valved cat-back; ~40 lb lighter than OEM. Made to order: 6-8 week lead time; all sales final.
  • 2015–2021 Subaru | WRX STI
  • 2015–2021 Subaru | WRX

Description

The AeroflowDynamics AFD F1 Valved Cat-Back Exhaust for the 2015-2021 Subaru WRX/STI pairs ultra-lightweight construction with on-demand sound control. Crafted from Grade 5 titanium or stainless steel with a valve option, the system weighs roughly 40 lbs less than the OEM exhaust while delivering a louder, more aggressive note. Precision engineering optimizes exhaust flow for improved horsepower and torque, and the Grade 5 titanium ensures long-lasting performance. All hardware is included; professional installation is highly recommended. Each system is made to order with a 6-8 week build lead time. All sales are final.

  • Grade 5 titanium or stainless steel construction with valve option
  • Roughly 40 lbs lighter than the OEM exhaust - louder, more aggressive note
  • Optimized exhaust flow for improved horsepower and torque
  • All hardware included; professional installation highly recommended
  • Made to order: 6-8 week build lead time - all sales final

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Limited Manufacturer Warranty

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