2015-2021 Subaru WRX/STI V3 Diffuser
2015-2021 Subaru WRX/STI V3 Diffuser
AFD-VA-AL-DIFF-V3-MID
Choose your configuration
Choose one option in each of the 1 sections below.
Options
Description
Designed for theย 2015โ2021 Subaru WRX / STI
๐ง Direct Fitment
Specifically engineered to mount directly to the factory rear bumper with no cutting or trimming required.
๐ ๏ธ Material
Crafted from aerospace-grade lightweight aluminum for superior durability and strength.
โ๏ธ Finish & Build Quality
Precision CNC-cut and professionally powder coated in gloss black. Pre-drilled for straightforward 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.
๐งฐ Install-Friendly
Includes all required hardware.
Professional installation is highly recommended.
๐จ Why Add a Rear Diffuser to Your WRX/STI?
This rear diffuser enhances the WRX/STIโs aggressive styling while improving aerodynamic performance. By optimizing underbody airflow, it helps reduce drag and increase rear-end stability at higher speeds.
Fitment & Specs
Use the vehicle finder to verify compatibility for your specific make, model and year.
Shipping
Free shipping (no minimum).
Find Parts For Your Vehicle
Three steps. Zero guesswork. Every part bench-tested against the OEM body for a 100% fitment guarantee.
If you have questions or concerns, feel free to contact our specialist today!
OWNER FEEDBACK
Real Builds. Real Results.
Verified feedback from enthusiasts who installed, drove, and lived with this product.


















