2015-2021 Subaru WRX/STI AGGRESSIVE V5 Diffuser
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 USA
Proudly manufactured in the United States using high-grade materials and expert craftsmanship.
Production Lead Time
CNC items are made to order and have raw materials allocated to production once the order is placed. For concerns regarding current lead times, please review the CNC Products section in our Terms & Conditions.
🧰 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.