Flashark Exhaust Manifold Headers for 1962-1974 MG MGB 1.8L
Enhance your 1962-1974 MG MGB 1.8L with FLASHARK Exhaust Headers. Made from durable stainless steel, these headers boost horsepower and torque by reducing back pressure. The kit includes everything needed for installation: header, pipe, gaskets, flange clamp, and hardware. Enjoy better performance, improved fuel efficiency, and a powerful sound. Upgrade your MGB headers today and experience the difference! Free shipping included.
Specifications:
Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Automobile Exhaust Header
Material: Stainless Steel
Surface: Mirror Polish
Including:
1*Exhaust Header
1*Pipe
1*Gaskets
1*Flange Clamp
1 Pack Screws & Nuts
Details:
Inlet Size: 1.50"
Outlet Size: 2"

High-Temperature Inoxidizability
Exhaust in the high-temperature cycle for a long time. The oxidation resistance of the material at high temperatures directly affects the service life of the exhaust. The exhaust system of Flashark is resistant to high temperatures and has good oxidation resistance
OE Specified Design
The exhaust system produced by the original factory has the characteristics of anti-deformation and anti-cracking, so that your exhaust system will not leak, can extend the service life of the engine, and has a better sense of experience
Boost Horsepower and torque, and Save on Gas with Headers and Exhaust System Modifications!
Replacing your MG MGB 1.8L’s headers and exhaust with FLASHARK Exhaust Headers is an effective way to increase horsepower, torque, and give your vehicle that powerful muscle car sound. These headers can add up to 8-20 horsepower, improving overall engine performance. Plus, installing this exhaust system can also boost your gas mileage by about 0.5 mpg. While this might not seem like much, think about it: at $3 per gallon and driving 15,000 miles a year, you'll save around $85 annually on gas. In just five years, you could save enough to almost cover the cost of a full cat-back exhaust system!
Exhaust Header VS Manifold, which is the better choice?
The main structural differences between exhaust headers and manifolds lie in their material and design. FLASHARK Exhaust Headers are made of lightweight, durable stainless steel, while traditional exhaust manifolds are constructed from thick iron. Headers are longer and designed to provide each cylinder with its own individual tube, eliminating the back pressure commonly created by manifolds. This means better exhaust flow and increased performance. By reducing back pressure, FLASHARK headers improve horsepower and torque, making them a superior choice for your MG MGB 1.8L compared to standard exhaust manifolds. Choose headers for better performance, efficiency, and sound!
-
1962-1974 MG MGB 1.8L
Q1: What are the performance benefits of installing the FLASHARK Exhaust Header on a 1962-1974 MG MGB 1.8L?
A1: Upgrading to the FLASHARK performance exhaust header can boost your MGB 1.8L engine by adding 8 to 20 horsepower and significantly increasing torque. By optimizing exhaust flow and minimizing back pressure, this stainless steel header enhances overall engine efficiency and responsiveness.
Q2: How does the FLASHARK stainless steel header compare to a traditional factory MGB exhaust manifold?
A2: Unlike stock cast-iron manifolds that restrict exhaust flow, the FLASHARK header features individual lightweight stainless steel tubes with a 1.50" inlet and 2" outlet. This individual runner design completely eliminates the back pressure commonly created by traditional manifolds, yielding better performance, efficiency, and a powerful sport sound.
Q3: Will this FLASHARK exhaust header fit later MGB models, such as the 1975-1980 rubber bumper cars?
A3: While explicitly designed as a direct fit for 1962-1974 MG MGB 1.8L models, customer feedback confirms it serves as an excellent performance upgrade for 1975-1980 rubber bumper cars when paired with an improved intake system. It also fits 1980 models perfectly during conversion configurations.
Q4: What is included in the FLASHARK 1962-1974 MGB exhaust header kit?
A4: This all-in-one upgrade kit includes 1*Exhaust Header, 1*Pipe, 1*Gaskets, 1*Flange Clamp, and 1 Pack of Screws & Nuts. Everything required for a secure, hassle-free installation is included right out of the box.
Q5: Does this MGB performance manifold upgrade improve fuel economy?
A5: Yes. By replacing your stock setup with FLASHARK Exhaust Headers, you can boost your gas mileage by about 0.5 MPG. While it seems modest, over a typical driving year of 15,000 miles, the accumulated gas savings will help cover the long-term cost of your classic car’s modifications.
Q6: What kind of sound change should I expect after installing this MGB 1.8L exhaust header?
A6: The FLASHARK stainless steel header provides your classic British sports car with a deeper, more aggressive muscle car tone, enhancing the driving experience without creating harsh, unrefined noise.
Q7: Is the FLASHARK MGB header resistant to high-temperature cracking and rust?
A7: Yes. Made from premium-grade stainless steel with a stunning mirror polish surface, this header features exceptional high-temperature inoxidizability and oxidation resistance. The OE-specified design prevents deformation and cracking during intensive heat cycles, drastically extending the service life of your engine's exhaust system.
Q8: What are the exact inlet and outlet dimensions of this MGB performance header?
A8: The FLASHARK MGB exhaust header is engineered with a 1.50" inlet size and a 2" outlet size, optimized to provide maximum flow and velocity for the 1.8-liter engine.
Q9: Is professional installation required for this MGB exhaust header upgrade?
A9: This header kit is designed to match original factory specifications for a straightforward bolt-on installation. If you are an experienced car modification enthusiast with standard hand tools, it can be a rewarding DIY project. However, professional installation is recommended to guarantee a perfect leak-free seal.
Q10: Does this FLASHARK header solve common exhaust leak issues on the MG MGB 1.8L?
A10: Yes. Traditional cast iron manifolds often warp and develop leaks over time. The FLASHARK header features a nice thick mounting flange and precise welds that prevent anti-deformation, ensuring a secure fit that won't leak and safeguards your engine's long-term health.
Q11: Is free shipping available for this classic MGB 1.8L exhaust manifold?
A11: Yes, FLASHARK offers free shipping on this exhaust header manifold, providing outstanding value along with a premium product upgrade.
Q12: Is the FLASHARK exhaust header manufactured under certified quality control?
A12: Absolutely. FLASHARK automotive headers hold the ISO9001:2000 quality management certification, ensuring strict manufacturing standards, premium material selection, and excellent fitment reliability.
Q13: What is the SKU code for this specific MG MGB exhaust manifold upgrade?
A13: The SKU for this premium mirror-polished stainless steel exhaust header manifold tailored for the 1962-1974 MG MGB 1.8L is FLES08037.












