2015-2021 Subaru WRX/STI AGGRESSIVE V5 Diffuser
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Over 1,000,000+ parts installed Worldwide
Designed for the 2015–2021 Subaru WRX / STI
🔧 Direct Fitment
Precision-designed to mount cleanly onto the OEM rear bumper of all 2015–2021 WRX and STI models.
🛠️ Material
Crafted from aerospace-grade lightweight aluminum, offering high strength without unnecessary weight.
⚙️ Finish & Build Quality
Fully CNC’d and professionally powder coated in gloss black. Pre-drilled for easy and accurate installation.
Made in the USA
Proudly built in the United States with expert craftsmanship and top-tier materials.
🧰 Install-Friendly
Ships with all necessary hardware.
Professional installation is highly recommended.
💨 Why Add a Rear Diffuser to Your WRX or STI?
This aggressive V5 diffuser enhances rear-end aesthetics while managing underbody airflow to reduce drag and improve stability. The sculpted fins and bold styling make a statement at any angle — perfect for track builds and street-driven performance cars alike.
CNC-cut aero components are produced per order and require material allocation and machine programming.
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Typical Lead Time: 3-5 weeks
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CNC items may be canceled within the first (5) business days
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After 5 business days: Orders become FINAL SALE
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Any cancellation request will be subject to a restocking fee due to production preparation already in progress.
