Description

Engineer your WRX S4 for enhanced high-speed stability and aggressive style with an authentic STI front under spoiler. This is not just a cosmetic piece; it’s a functional aerodynamic component designed to manage airflow, improve handling, and form the foundation of a complete STI aero system.

Product Highlights

• Functional Aerodynamic Performance: Its primary role is to regulate the air flowing under the front bumper, improving road contact. This reduces front-end lift and turbulence, improving handling stability and steering feel at high speeds—a true performance upgrade.

• STI Complete Aero System Component: This spoiler is designed as the front element of a complete aerodynamic package. When combined with the matching STI side, rear, and rear under spoilers, rear diffuser, and dry carbon rear spoiler, it works synergistically to maximize overall aerodynamic effectiveness.

• Bespoke Color Options for Customization:

  • Crystal Black Silica: For a stealthy, integrated look.

  • Cherry Red: For a bold, high-contrast statement that highlights the aerodynamic form and asserts STI’s performance identity.

Technical Specifications & Critical Fitment Notes

• Product Name: STI Front Under Spoiler for Subaru WRX S4

• Key Benefits: Functional Downforce & Stability, Part of Complete STI Aero Kit, Choice of Black or Red

• Material & Finish: Resin, painted in Crystal Black Silica or Cherry Red.

• Warranty: Covered by the SUBARU genuine product warranty.

⚠️ Critical Compatibility & Usage Warnings:

• Exclusive Installation: This product cannot be installed together with the standard Front Bumper Skirt. You must choose between the functional STI system or the aesthetic skirt; they are not compatible.

• Substantial Ground Clearance Reduction: The installation lowers ground clearance by approximately 40mm. This dramatic reduction requires extreme caution on driveways, speed bumps, and any uneven terrain. Scraping is very likely, and daily drivability in areas with poor roads will be significantly impacted.