Flashark Long Tube Headers for 2011-2014 Ford Mustang GT 5.0L 302 V8
The FLASHARK Long Tube Headers for 2011-2014 Ford Mustang GT 5.0L 302 V8 are crafted from high-quality stainless steel with a mirror-polished surface, offering both durability and a sleek appearance. Designed for performance and custom applications, these headers feature a 1.75" tube diameter and a 2.50" collector size to optimize exhaust flow, improving horsepower and torque.
Specifications:
Fitment Type: Performance/Custom
Material: Stainless Steel
Placement on Vehicle: Front
Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: Long Tube Headers
Material: Stainless Steel
Surface: Mirror Polish
Model: EH28106(ES08233)
Tube Diameter: 1.75"
Collector Size: 2.50"
Package Includes:1 Set of Header Kits, Hardware such as Gaskets and Bolts
What do exhaust headers do?
Boost Horsepower, Torque, and Save on Gas with Headers and Exhaust System Modifications!
Replacing a vehicle’s headers and exhaust is a way to add horsepower and torque, and it will also increase your vehicle’s volume. Want a car that sounds like an American muscle car should? This header will help your vehicle achieve that and it can add up to 50 horsepower.
Install an exhaust system means about a 0.5 mpg gas mileage improvement. While that might not sound like much, consider this: If gas costs $3 a gallon, and you drive this truck 15,000 miles a year, you’re saving yourself about $85 a year on gas. In five years, you’ll have saved nearly enough money to pay for a complete cat-back exhaust system
Exhaust Header VS Manifold, which is the better choice?
The structural differences between exhaust headers and manifolds are the material and size. From the material, performance exhaust headers are made of lighter, thinner steel, while exhaust manifolds are made of thick iron. Exhaust headers are also longer than exhaust manifolds. When in use, exhaust manifolds create back pressure, which lowers performance. Because each cylinder of the engine is given its own tube, however, headers eliminate this problem; thus, allowing the gases to exit without the creation of back pressure. Therefore, exhaust headers are a BETTER choice than an exhaust manifold.
Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. FLASHARK offers many products to help you create your own custom engine headers. It's really easy and convenient to use: direct bolt-on, no modification needed.
Fitment & Compatibility
| Brand | Model | Year Range | Full Compatible Specs |
|---|---|---|---|
| Ford | Mustang GT (S197 Chassis) | 2011-2014 | All factory Coupe/Convertible body styles |
- Non-GT trim level Mustang models
- Non-S197 chassis Mustang models
- Engine-swapped or heavily modified vehicles
Q1: Are these long tube headers specifically designed for the 2011-2014 Ford Mustang GT 5.0L?
A1: Yes, these Flashark long tube headers are precision-engineered exclusively for the 2011-2014 Ford Mustang GT equipped with the 5.0L 302 V8 Coyote engine. They offer a verified, secure fit for all factory Coupe and Convertible body styles on the S197 chassis.
Q2: How much horsepower can I gain with these 2011-2014 Mustang GT long tube headers?
A2: Upgrading to long tube headers is one of the most effective Mustang GT exhaust upgrades available. By eliminating restrictive backpressure, these headers can unlock up to 50 additional horsepower and significantly increase low-end torque, dramatically improving your engine's overall track and street performance.
Q3: Will installing these 5.0 Coyote long tube headers change my exhaust sound?
A3: Absolutely. Replacing your restrictive factory iron manifolds with these stainless steel long tube headers will give your 5.0L V8 a much louder, deeper, and more aggressive American muscle car exhaust note. It is the ultimate sound upgrade for any S197 Coyote owner.
Q4: What are the tube diameter and collector size specifications for these headers?
A4: Designed for maximum exhaust scavenging, these Flashark performance headers feature a massive 1.75-inch primary tube diameter that merges seamlessly into a high-flow 2.50-inch collector. This perfectly balanced geometry optimizes exhaust velocity for the high-revving 5.0L engine.
Q5: Why should I choose long tube headers over my factory exhaust manifold?
A5: Factory exhaust manifolds are cast from thick, heavy iron and restrict exhaust flow by forcing gases to crash into each other, creating power-robbing backpressure. Our long tube headers use individual, mandrel-bent stainless steel tubes for each cylinder, allowing exhaust gases to exit smoothly and quickly, which drastically improves engine breathing.
Q6: Do these headers come with hardware, or should I use OEM gaskets?
A6: The kit includes a complete set of header gaskets and bolts for a standard installation. However, based on our tuning experience and feedback from fellow Mustang enthusiasts, we highly recommend upgrading to new OEM Ford multi-layer steel gaskets and OEM bolts for the absolute best seal and longevity under high-performance driving conditions.
Q7: Will these headers fit my 3.7L V6 or an engine-swapped Mustang?
A7: No. This specific header kit is strictly designed for the 5.0L V8 GT models. They will not fit non-GT trim levels (like the V6), non-S197 chassis Mustangs, or heavily modified/engine-swapped vehicles.
Q8: Does upgrading my Mustang GT exhaust system with headers affect fuel economy?
A8: Surprisingly, yes—in a good way! By allowing the engine to breathe easier and operate more efficiently, a properly tuned header and exhaust system upgrade can yield about a 0.5 MPG improvement in gas mileage, saving you money at the pump over time.
Q9: What material are the Flashark 2011-2014 Mustang 5.0 headers made from?
A9: They are constructed from premium, lightweight stainless steel and feature a stunning mirror-polished surface finish. This top-tier construction not only makes them highly resistant to heat and corrosion but also makes your engine bay look incredible.
Q10: Can I bolt these headers directly to an aftermarket X-pipe or catback system?
A10: Yes, our long tube headers are highly compatible with popular aftermarket exhaust setups. Many of our customers successfully bolt these right up to catted X-pipes (like BBK) and high-performance catback systems (like Roush). Minor adjustments or specific flow tubes may be required depending on your exact mid-pipe configuration.
Q11: Is the installation of these long tube headers a direct bolt-on process?
A11: For factory S197 5.0L setups, they are designed as a direct bolt-on performance upgrade with no structural modifications required to the chassis. However, due to the tight clearances of the Coyote engine bay, we highly recommend professional installation by an experienced tuning shop to ensure proper torque and alignment.




















