Description
The Group A Mazda RX7 FC Spec RE Pro Diffuser Center Divider is an aerodynamic component for the Mazda RX-7 FC3S (Series 4/5) rear diffuser setup. The center divider partitions the rear diffuser tunnel into two channels, managing underbody airflow separation and increasing diffuser efficiency by preventing cross-flow turbulence between the left and right diffuser sections. This improves the diffuser’s ability to accelerate exiting underbody air, reducing rear lift and enhancing high-speed stability.
Made from composite materials with a clean finish, this center divider integrates with the Spec RE Pro Diffuser system for the FC3S.
- Center divider for Mazda RX-7 FC3S Spec RE Pro Rear Diffuser
- Partitions diffuser tunnel for improved aerodynamic efficiency
- Reduces cross-flow turbulence between diffuser channels
- Reduces rear lift — improves high-speed stability
- Compatible with Spec RE Pro Diffuser for RX-7 FC3S
- Composite construction — lightweight and functional
- Handcrafted in Southern California
Fits: Mazda RX-7 FC3S (1985–1992) with Spec RE Pro Diffuser. Call (626) 808-4168 or visit 2815 Pomona Blvd, Pomona, CA 91768.





