2015-2021 Subaru WRX /STi VA - Rear Diffuser Splitter Shark Fins

Product Description:

Give your VA Subaru WRX or STI a aggressive, track-ready rear profile with the NexaNovo Shark Fin Rear Diffuser Splitters. Specifically engineered for the 2015–2021 chassis, these aero fins transform the factory rear bumper into a high-performance diffuser, providing that iconic "Time Attack" aesthetic without the cost of a full bumper replacement.

Key Features:

• Aggressive Shark Fin Styling: This kit features pronounced vertical strakes (shark fins) that attach to the lower rear bumper. They visually lower the car's center of gravity and provide a sharp, geometric look that perfectly frames your quad exhaust tips.

• Premium Gloss Black Finish: Manufactured from high-grade, impact-resistant ABS plastic with a mirror-like gloss black finish. Each piece is treated with a UV-resistant clear coat to prevent fading and "chalking" from exhaust heat and sun exposure.

• Aerodynamic Functionality: Beyond the visual upgrade, these vertical fins are designed to stabilize airflow exiting the underside of the vehicle, reducing turbulence and enhancing high-speed stability.

• Signature VA Series Fitment: Precision-molded to match the factory rear bumper contours of:

  • Subaru WRX (Base, Premium, Limited)

  • Subaru WRX STI (Base, Limited, Type RA)

  • Years: 2015, 2016, 2017, 2018, 2019, 2020, 2021.

• Durable & Heat Resistant: Built to withstand the high temperatures generated by performance exhaust systems. The ABS material is rigid enough to maintain its shape under high-velocity wind pressure while remaining flexible enough to resist impact.

• Secure Installation: This is a 4-piece or 1-piece integrated kit (depending on specific model selection) designed to mount securely to the lower bumper. Professional installation is recommended as it requires mechanical fastening (drilling and screws) to ensure the fins remain secure at highway speeds.

Product Specifications:

FAQ:

Does this require drilling into my bumper?

Yes. To ensure the shark fins remain stable under high-speed wind pressure and don't vibrate against the exhaust, they must be secured with the provided self-tapping screws through the underside of the bumper cladding.

Will this fit with my 3.5" or 4" aftermarket exhaust tips?

Yes! These fins are designed to mount in the center section of the bumper, leaving ample clearance for even the largest aftermarket quad-tip exhaust systems (like Remark, Invidia, or AWE).

Is this real carbon fiber?

This specific model features a premium Gloss Black finish. For the genuine carbon version, please check our "Real Carbon Fiber" collection.

Are these sold as a complete set?

Yes, each order includes the full set of fins and the necessary mounting hardware to complete the rear transformation.