FSPE ATHENA Rear Diffuser & Spats – Mustang S550 (2018–2023 Ecoboost)

FSPE ATHENA Rear Diffuser & Spats for 2018–2023 Mustang S550 Ecoboost

Transform the rear profile of your S550 with the FSPE ATHENA Rear Diffuser & Spats, specifically engineered for the 2018–2023 Mustang Ecoboost. This premium aerodynamic upgrade combines an aggressive, refined aesthetic with high-grade materials to ensure your vehicle stands out on the street or at the track.

Constructed from CNC-cut 5052 aluminum and finished in a durable semi-gloss black powder coat, the ATHENA system is built to withstand the elements while maintaining a show-quality look. The integrated 6-degree upward rake and precision-curved fins provide a sophisticated finish that complements the natural lines of the Mustang chassis.

Key Features

• **Premium Construction:** CNC-cut from high-quality 5052 aluminum for precision and long-term durability.
• **Durable Finish:** Powder-coated in a semi-gloss black to provide a flawless, weather-resistant appearance.
• **Aerodynamic Design:** Features a 6-degree upward rake to enhance both visual appeal and aerodynamic performance.
• **Complete Aero Kit:** Includes the center rear diffuser, curved outer fins, and a pair of outer rear spats.
• **Precision Hardware:** Supplied with stainless steel bolts and pre-drilled mounting holes for a secure fit.
• **Optional Customization:** Compatible with optional flexible rubber edge trim with 3M backing for added visual contrast.
• **American Made:** Proudly designed and manufactured in the USA.

Fitment / Applications

• 2018-2023 Ford Mustang S550 (Ecoboost / Ecoboost Premium)
• Note: Does not fit GT, GT Performance Pack, GT350, GT500, or Mach 1 models.

Notes

• Detailed installation instructions are included to ensure a straightforward process.

Pro Tip: Pair this diffuser with FSPE’s CHAOS Front Splitter and side skirts for a fully coordinated, show-ready aero package.