STOUT Aero Bonnet - Type S

To suit Mazda MX-5/Miata/Roadster NB8C & NB6C

Engineered for both function and style, our aero bonnet features strategically placed ducts to optimize airflow and manage engine bay temperatures. The sloped design around each duct enhances heat extraction, making this bonnet ideal for high-performance applications, from street driving to track use.

Key Duct Functions:

Duct A: Feeds fresh air directly to exposed air filters.

Duct B: Primary duct for extracting hot engine bay air.

Duct C: Secondary duct, ideal for dissipating heat around the turbine in turbocharged setups.

Available Variants:

Type S: Equipped with a wide B duct for efficient heat dissipation—ideal for general performance needs.

Type SS: Features both B and C ducts. Duct C is positioned to release heat from turbo systems—perfect for forced induction builds.

Type R: Designed for hardcore tuners and track-day enthusiasts. Offers configurations with A and B (best for naturally aspirated engines) or A through C (for turbocharged setups).

Performance Benefits:

Weight Reduction: Our bonnet is approximately half the weight of the OEM steel version, significantly reducing front-end weight and improving handling balance—especially effective on large-displacement cars.

Stylish Finish: Each bonnet features a refined, performance-inspired design that enhances the vehicle's appearance. Carbon fiber models come with a polished surface finish that delivers a premium look and feel.

Whether you're chasing lap times or elevating your car’s street presence, this aero bonnet offers the ideal balance of cooling performance, weight savings, and style.