Exhaust Headers for 1960-1983 Ford/Mercury Inline 6 144/170/200/250 Cid
Upgrading or replacing your exhaust header is essential for improving engine performance and sound. FLASHARK headers help increase horsepower and enhance exhaust tone, whether on the track or the street. With a direct bolt-on design, these custom headers require no modifications, offering a simple and effective upgrade. Compatible with a wide range of Ford and Mercury models from 1960 to 1983, including those with Inline 6 engines (144, 170, 200, 250 CID), they are a perfect fit for classic vehicles like the Ford Bronco, Ford Mustang, and many more, providing enhanced power and a more aggressive exhaust sound.
Exhaust Header VS Manifold, which is the better choice?
The primary difference between exhaust headers and manifolds is their material and design. Exhaust headers are typically made from lighter, thinner steel, while exhaust manifolds are made of thicker iron. Headers are also longer and more efficient than manifolds. Manifolds tend to create back pressure, which reduces engine performance. In contrast, headers eliminate this issue by giving each cylinder its own exhaust tube, allowing gases to exit more efficiently without creating back pressure. This design leads to improved horsepower and better overall engine performance.
For vehicles equipped with Inline 6 engines, such as those with the Ford 200 Inline 6 headers, headers provide a significant performance boost compared to manifolds, enhancing both power and exhaust sound.
In addition to purchasing this product, Flashark highly recommends that you purchase Flashark and Spelab's new collaborative product, the silicone coolant hose kit; to replace the stock rubber coolant hose in your car's cooling system.
Aresilicone coolant hosesbetter? Coolant hoses transport the coolant—a mixture of water and antifreeze—from the engine to the radiator and back. The coolant absorbs heat from the engine block and heads and then releases this heat through the radiator, where airflow dissipates it away from the vehicle. This continuous flow is crucial for preventing engine overheating, which can lead to severe damage or failure.
Put this catch can on my ’21 Q60. Install was straightforward, hoses lined up perfectly. Engine feels smoother on acceleration, and I’m confident it’s preventing future carbon buildup.
Put these on my ’10 G37 Coupe last month. Fitment was spot-on, install went smooth, and no rattles or leaks after a few hundred miles. Noticeable bump in power and a deeper exhaust tone without too much drone.
Installed these on my ’08 G37X over the weekend, and I’m impressed. The fitment was spot-on, no weird gaps or alignment issues. Throttle response feels snappier, and there’s a nice bump in low-end torque. The sound is a bit more aggressive but still daily-driver friendly.
I installed these on my 2012 G37 Coupe. Fitment was decent—took some effort around the steering shaft but nothing crazy. Once installed, the car feels more responsive and definitely pulls harder above 4K RPM. The sound is throatier too, especially at wide open throttle. Paired with a tune, it made a noticeable difference. So far, no leaks or issues.
