Bull Boost Performance H-Series 1018 Steel Exhaust Header Flange

Bull Boost Performance H-Series 1018 Steel Exhaust Header Flange

Part Number: 729859401928

Build a stronger, more reliable exhaust system with the Bull Boost Performance H-Series 1018 Steel Exhaust Header Flange. Precision CNC-machined from premium 1018 mild steel, this flange is engineered for fabricators and performance enthusiasts who demand exceptional fitment, strength, and durability for custom exhaust header and turbo manifold projects.

Designed to withstand extreme exhaust temperatures and high-performance applications, this flange features a precision-machined 3D port design that promotes smooth runner transitions while simplifying fabrication. The heavy-duty 1/2-inch thick construction helps minimize warping and ensures a reliable gasket seal under demanding conditions.

Whether you're building a naturally aspirated race header or a high-horsepower turbo manifold, this flange provides the foundation needed for a professional-quality fabrication project.

Features:

• Manufactured by Bull Boost Performance
• Precision CNC-machined 1018 mild steel construction
• Advanced 3D port design
• Heavy-duty 1/2" thick flange
• Excellent weldability for TIG and MIG fabrication
• Designed for custom exhaust headers
• Ideal for turbo manifold fabrication
• High-temperature resistant construction
• Improved sealing surface for gasket reliability
• Suitable for naturally aspirated and turbocharged applications
• Made in the USA

Engineering & Construction:

Premium 1018 Steel Construction

• Manufactured from high-quality 1018 mild steel for superior durability, strength, and fabrication-friendly weldability.

Precision 3D Port Machining

• Features CNC-machined port transitions designed to improve exhaust runner flow and provide a professional fabrication finish.

Heavy-Duty 1/2" Thickness

• Engineered to resist warping and maintain gasket sealing integrity under extreme temperatures and high-performance use.

Fabricator Ready

• Designed specifically for custom exhaust and turbo fabrication projects utilizing professional welding and fabrication techniques.

Specifications:

• Material: 1018 Mild Steel
• Thickness: 0.500" (12.7mm)
• Manufacturing Process: CNC Machined
• Finish: Raw Machined Steel
• Application: Exhaust Header & Turbo Manifold Fabrication
• Country of Manufacture: USA

Package Includes:

• (1) H-Series 1018 Steel Exhaust Header Flange

Fitment:

• Honda H-Series engine applications
• Compatible with custom exhaust header fabrication
• Compatible with turbo manifold fabrication
• Suitable for street, race, drag racing, and forced induction builds

Important Notes:

• Professional fabrication and welding are recommended
• Please verify dimensions and intended application prior to purchase
• Tubing, hardware, and gaskets are sold separately unless otherwise specified

RPM Racing offers professional installation services and a wide selection of performance parts to help complete your build.

All warranties, claims, and product-related issues must be handled directly through BULL BOOST PERFORMANCE.