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

2015-2021 Subaru WRX/STI AFD F1 Valved Catback Exhaust - Main image
$1399.99 $1999.99 In stock

Category: AeroflowDynamics

Full Titanium Exhaust System – 2015–2021 Subaru WRX/STI
Available in Grade 5 Titanium or Stainless Steel | Optional Valved Setup

Engineered for Sound. Built for Speed.

Is your WRX or STI missing the aggressive tone it deserves?
The AeroflowDynamics Full Titanium Exhaust System is the ultimate solution for enthusiasts who want uncompromising performance, premium weight reduction, and an exhaust note that commands attention.

Crafted from aerospace-grade Grade 5 Titanium, this system is engineered for optimized flow, increased horsepower, and an unmistakable sound. Whether you're chasing faster track times or louder street presence, this system is your go-to.

🔥 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 & Install Info

  • Vehicle Fitment: 2015–2021 Subaru WRX/STI

  • Weight Savings: Over 40 lbs lighter than stock

  • Material Options: Full Grade 5 Titanium or Stainless Steel

  • Valve Control Option: Available

  • Install Method: Direct bolt-on

  • Hardware: Included

  • Recommended: Professional installation HIGHLY recommended

  • Warranty: Lifetime craftsmanship warranty (materials-specific)

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. For concerns about lead times and exhaust systems policies, please review our Terms and Conditions.

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If you need a refund

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Refund processing (days after receipt and inspection): 3. Bank or payment provider posting times are separate from the merchant processing period.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

Buyer arranges shipping; seller reimburses the postage

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Customer Reviews (5.0 / 5 · 5 reviews)

Isabella T. ★★★★★

The valved setup is the reason I bought this and it does not disappoint—flip a switch and the tone goes from daily-driver civil to properly aggressive. The Grade 5 titanium keeps the whole system light enough that I actually noticed the difference in how the rear end feels over bumps. Install took a

Carter ★★★★★

The titanium finish looks incredible on the car, and the fitment was perfect out of the box. I was honestly surprised at how much deeper it sounds under load, even with the valves closed.

Matthew B. ★★★★★

The valved setup is the reason I bought this, and flipping it open on the highway makes the titanium sing without any drone in the cabin. Even the build quality surprised me—everything bolted up in an afternoon with no alignment headaches.