The 5.7 Hemi Long Tube Headers are a true holy grail for your monster trucks. They increase your vehicle’s efficiency by enhancing the exhaust gas flow, making it a good-to-go ride with a seamless engine. However, these headers aren’t this simple to install and demand customization due to their size and design. Though Flashark Long Tube 5.7 hemi headers also come with additional incentives, they are constructed with high-quality materials and other heat-resistant alloys, letting you experience a full-fledged and smooth truck performance. Read below to find out how these headers help you release exhaust gases from your engine.

Why Exhaust Headers But Not Manifolds?

Technology comes and vanishes. Only those able to stand out have the knack to outpace their competitors, and that’s what the exhaust headers did with manifolds. The exhaust manifold had a pretty good start, but it didn’t help much with the direct flow of exhaust gases from the cylinders, resulting in fewer purchases. Thus, here comes the exhaust headers with better construction and mechanical design to wipe out the manifolds as outdated mechanics.

The exhaust headers are said to have individual tube designs for each cylinder, whereas the manifold has single tubes, which helps in the direct flow of gases from the cylinder. The better flow comes with reduced backpressure, a resistance substance against releasing gases, directly contributing to increased horsepower and torque. The exhaust headers also help pull exhaust gases from one cylinder to another and enhance the scavenging effect, which results in greater efficiency.

Moreover, they provide customization options, allowing adjustments to tube lengths and diameters to cater to various performance requirements. From the aspects of materials, exhaust headers are made from light and thin material, but manifolds are made of thick iron, which increases heat in the engine and results in a decline in performance.

Here’s a quick differentiation that can help you decide between exhaust headers and manifolds:

Exhaust Headers

1. Reduced backpressure for direct flow.

2. Enhanced scavenging.

3. Offers customization in performance.

4. Cool engine to improve efficiency.

5. One of a kind for racing and motorsport as it extracts maximum engine power.

Exhaust Manifolds

1. Increased backpressure as resistance.

2. No scavenging effects.

3. Unoptimized performance.


4. Hot engine bay.

5. Didn’t go well with racing cars.

FLASHARK Exhaust Headers (2006-18 DODGE Ram 5.7L Hemi)


Exhaust headers are indeed groundbreaking components for vehicle mechanics. From greater efficiency to individual tube designs, each specification tends to improve the engine’s performance for a smooth ride. But what’s special about FLASHARK exhaust headers? Let’s delve deeper into it. The 5.7L Hemi headers are designed to swap the manifolds on the Dodge RAM 5.7L Hemi V8 engine for a better flow of heat from the engines. With their thin iron casting, they overall help in declining the backpressure to increase horsepower and torque. It’s also worth mentioning that these exhaust headers can directly replace the factory manifolds and offer easy installation without extensive truck modifications.

The 5.7L Hemi headers come in two ways:

· Long Tube Headers


These headers feature a long tube design for 2006 to 2018 Dodge RAM. They come with a two-bolt flange with a size of 1.75 inches to hold the primary tube to the exhaust ports. These long tube headers have long individual tubes for each cylinder compared to manifolds or short tube ones. These extended tubes mainly help create the scavenging effect when an exhaust gas exits the cylinder; it results in reduced back pressure in the header tubes.

The scavenging effects also often generate more torque at lower RPMs for better low-end and mid-range performance for everyday seamless drives. The 5.7L long tube headers also have mounted hardware and are made of stainless steel to help the engine maintain a cooler temperature than factory manifolds.

· Short Tube Headers


Short-tube headers come with shorter individual tubes than long-tube, which doesn’t create an enhancing scavenging effect, but it helps with overall efficiency way too much than exhaust manifolds. They consist of a 64mm collector diameter, which is larger in size than the factory manifold, contributing to the reduction of backpressure and expelling of more gases from the engine. They are less noisy than long tubes and can go well with higher RPM ranges. However, short tube exhaust headers are appropriate for vehicle freaks who prefer performance gains with a less complex installation system.

What Should You Prefer?

While choosing between factory manifold and exhaust headers, your decision mainly depends on budget and vehicle use, whether for a racing purpose or an everyday drive. Exhaust manifolds offer you seamless installation and are relatively easy to maintain. Also, they are pretty economical and don’t demand extensive modifications. But as we already discussed, these manifolds have poor engine efficiency. Their manufacturing results in heat storage that reduces overall power mileage.

On the other hand, 5.7L exhaust hemi headers can provide you greater performance gains in terms of horsepower, torque, and responsive engines. They're not economical but are many times more efficient than the manifolds. They also offer customization, which means you are free to tune your vehicle’s performance the way you love to drive. But it’s also worth noticing that exhaust headers might not meet emission standards and can potentially lead to legal issues, and modification with these headers can also impact your manufacturer warranty. So choose wisely!

Exhaust header


Nick Collard

Nick Collard

Hello. I just started seeing your web site. I have a 2012 Challenger R/T with the 5.7 Hemi. Are your headers a direct fit or will mods need to be made to them? Who would these compete with competitor wise? Are you your own brand or is there a brand manufacturer your using? Thanks!

Nick Collard

Nick Collard

Hello. I just started seeing your web site. I have a 2012 Challenger R/T with the 5.7 Hemi. Are your headers a direct fit or will mods need to be made to them? Who would these compete with competitor wise? Are you your own brand or is there a brand manufacturer your using? Thanks!

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