Mazda 12A Header Flange

Mazda 12A Head Flange precision laser-cut for strength, reliability, and an exact fit to suit rotary engine fabrication. Designed for custom exhaust manifold builds, performance upgrades, and restoration projects, this flange provides a solid foundation for clean welds and long-lasting durability.

Crafted to handle high temperatures and repeated heat cycles, the 12A flange is ideal for fabricators building performance exhausts or one-off rotary setups. Supplied in as-cut condition.

Typically paired with our exhaust stud kits for secure manifold mounting.

Key Features:

Material Options: Available in mild steel or 304 stainless steel

Thickness: 12mm for stability and resistance to warping under heat

Manufacturing: Precision laser-cut for accuracy and clean fitment

Ports: 51mm or 55mm options to suit various 12A configurations other port sizes on request

Application: Perfect for custom exhaust manifold fabrication and rotary restorations

Customization: Tailored port layouts or materials available on request

For special requirements, bulk orders, or availability inquiries, contact UFS to discuss your project.