2015-2021 Subaru WRX/STI V1 Diffuser

Designed for the 2015–2021 Subaru WRX / STI

🔧 Direct Fitment
Specifically designed for a clean, bolt-on fit to the OEM rear bumper of all 2015–2021 WRX and STI models—no modifications needed.

🛠️ Material
Crafted from aerospace-grade lightweight aluminum, offering unmatched strength and durability for street or track use.

⚙️ Finish & Build Quality
Fully CNC’d and professionally powder coated in gloss black. Pre-drilled mounting points ensure an efficient and accurate installation.

Made in the USA
Expertly manufactured in the United States with precision and pride.

🧰 Install-Friendly
Includes all necessary hardware for a complete install.
Professional installation is highly recommended.

💨 Why Add a Rear Diffuser to Your WRX/STI?
This diffuser enhances your vehicle’s aerodynamics by managing underbody airflow and reducing drag. The aggressive design also gives your WRX/STI a bold, race-ready look that turns heads wherever you go.

CNC-cut aero components are produced per order and require material allocation and machine programming.

• Typical Lead Time: 3-5 weeks
  

• CNC items may be canceled within 48 hours
  

• After 48 hours: Orders become FINAL SALE

• Any cancellation request will be subject to a restocking fee due to production preparation already in progress.