Nissan 180SX (RPS13) Rear Underbody Diffuser

Protect your investment with this underbody rear diffuser designed specifically for your Nissan Silvia 180SX (RPS13) - suits stock/type X rear bar types.

Designed to improve underbody airflow and aerodynamic efficiency, Aerocutt Automotive Underbody Aero Rear Diffusers help manage airflow as it exits from beneath the vehicle. 

By improving the transition of airflow at the rear of the vehicle, the diffuser helps reduce turbulence and rear wake while promoting cleaner, more controlled underbody flow.

Key Benefits

• Improves aerodynamic efficiency by helping manage airflow beneath the vehicle.
• Promotes smoother underbody airflow as air exits towards the rear of the vehicle.
• Helps reduce rear wake and turbulence for cleaner airflow behind the vehicle.
• Helps reduce rear tyre squirt, minimising disruption caused by airflow around the rear tyres.
• May contribute to improved fuel efficiency by reducing aerodynamic drag and improving airflow management.
• Motorsport-inspired design developed with both performance and functionality in mind.
• Precision-engineered for vehicle-specific fitment and seamless integration.

Aerocutt Underbody Aero Rear Diffusers are the perfect addition for enthusiasts looking to improve the aerodynamic performance and underbody airflow characteristics of their vehicle while adding a purposeful, performance-focused finish.

Exhaust Fitment Note

Aerocutt Rear Diffusers are designed to accommodate a wide range of universal exhaust configurations. Depending on your vehicle’s exhaust system, minor trimming or adjustments may be required to achieve correct clearance and fitment.

Precision cut from 2mm aluminium, finished in a smooth charcoal powder-coating.