2015-2021 Subaru Wrx/Sti Rear Diffuser V5 ( Aggressive)
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.
Processing & Shipping Overview
Processing occurs before shipping.
Most in-stock items typically process within 2–3 business days before shipment or pickup. Expedited shipping options affect transit time after an order ships and do not speed up processing.
Made-to-order, special-order, vendor drop-ship, and freight items require additional processing time before shipping. Any extended lead times will be noted on the product page when applicable.
For the most up-to-date order status or lead time questions, please contact sales@smgspeed.com or use live chat during business hours.