K Series Exhaust Header Flange Steel 1/2" Thick Port Turbo Manifold Flange
Bull Boost Performance K-Series 1018 Steel Exhaust Header Flange
Build a stronger, more reliable turbo manifold or exhaust header with the Bull Boost Performance K-Series 1018 Steel Exhaust Header Flange. Precision CNC-machined from premium 1018 mild steel, this heavy-duty flange is designed for fabricators, racers, and performance enthusiasts who demand superior fitment, strength, and long-term durability.
Featuring a precision-machined 3D port design, this flange promotes smoother exhaust flow transitions while providing excellent weldability and fabrication flexibility. The robust 1/2-inch thick construction helps prevent warping under extreme heat and boost conditions, making it ideal for naturally aspirated, turbocharged, street, drag racing, and road racing applications.
Manufactured in the USA to professional fabrication standards, this flange is engineered to deliver consistent sealing, accurate fitment, and long service life.
Engineering & Construction
CNC Machined 1018 Mild Steel
Constructed from premium-grade 1018 steel for excellent strength, durability, and welding characteristics.
Precision 3D Port Design
Machined port entries provide a smooth transition into runners, helping improve exhaust flow and fabrication quality.
Heavy-Duty 1/2" Thickness
Designed to resist warping and maintain gasket sealing integrity under extreme temperatures and high-performance conditions.
Fabricator Friendly Design
Suitable for TIG and MIG welding and ideal for custom turbo manifold and header fabrication projects.
Specifications
- Material: 1018 Mild Steel
- Thickness: 0.500" (12.7mm)
- Overall Length: Approximately 12.25" (311mm)
- Port Opening Diameter: Approximately 1.75" (44.5mm)
- Overall Height: Approximately 3.00" (76mm)
- Configuration: 4-Port K-Series Design
- Finish: Raw Machined Steel
- Manufacturing Process: CNC Machined
- Country of Manufacture: USA
Features
- CNC machined in-house
- Premium 1018 steel construction
- Precision 3D port design
- Heavy-duty 1/2" thick flange
- Excellent weldability
- High-temperature resistant design
- Ideal for turbo manifold fabrication
- Suitable for custom exhaust header construction
- Improved sealing surface for maximum reliability
- Made in the USA
Applications
- Turbo manifold fabrication
- Custom exhaust header fabrication
- Drag racing builds
- Road racing applications
- Time attack vehicles
- High-performance street builds
- Naturally aspirated and forced induction projects
Package Includes
- (1) K-Series 1018 Steel Exhaust Header Flange
Installation Notes
Professional fabrication and welding are recommended. Verify dimensions and intended application prior to purchase. Hardware, tubing, and gaskets are not included unless otherwise stated.
The Bull Boost Performance K-Series Exhaust Header Flange is engineered for serious fabricators seeking a durable, precision-machined foundation for high-performance exhaust manifold and turbocharger projects.
Ships within 1-2 business days.
100% Genuine Parts
Fitment Guaranteed
K Series Exhaust Header Flange Steel 1/2" Thick Port Turbo Manifold Flange
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FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.