Exhaust Header
HEADER EXHAUST MANIFOLD FOR 11-15 FORD MUSTANG 3.7 V6 D2C SHORTY STAINLESS STEEL
A pair of 1-5/8 inch inlet 3-1 design shorty exhaust headers for the 2011-2015 Ford Mustang 3.7L V6 D2C. Made from T304 stainless steel with CNC machined flanges and TIG double side welding. Ships as a complete kit with headers, gaskets, and hardware. Fitment is specific to the 2011-2015 model year and does not cover 2016-2017 models.
- MaterialT304 Stainless Steel
- Design3-1 Shorty Header
- Inlet Size1-5/8 inch OD
- Outlet Size2-7/16 inch ID
What You Get
Key Benefits
- 3-1 design with 1-5/8 inch inlet and 2-7/16 inch outlet improves exhaust flow and reduces back pressure
- T304 stainless steel resists corrosion and heat cycling better than cast iron or mild steel manifolds
- CNC machined flanges ensure flat sealing faces for a leak-free joint with stock exhaust flanges
- TIG double side welding provides strong, consistent welds that hold under high engine temperatures
- Replaces factory manifolds with a bolt-on fit that increases horsepower and torque by 10-15 each
Why Buyers Switch
Problems It Solves
- Factory cast iron manifolds crack under heat stress and fail after 50k miles
- Mild steel or low-grade aftermarket manifolds rust at the flange and leak after one winter
- Poorly machined flanges cause misalignment and exhaust leaks at the joint
- Universal manifolds require cutting, welding, and custom fitting, increasing shop labour time
Where It Is Used
Application Scenarios
- Performance shops upgrading 2011-2015 Mustangs for improved throttle response and engine output
- Distributors stocking vehicle-specific exhaust manifolds for the 3.7L V6 Ford Mustang market
- Online sellers needing a photographed, fitment-verified part with a clean product listing
- Independent installers replacing cracked or warped factory manifolds on high-mileage Mustangs
Buyers
Who It Is For
- Performance parts distributors buying Mustang exhaust hardware by the pallet
- Truck and car accessory wholesalers serving North American V6 Mustang owners
Construction
Technical Features
- Pair of shorty exhaust headers with 3-1 design and 1-5/8 inch inlet / 2-7/16 inch outlet
- CNC machined flanges with 2-bolt pattern to match stock exhaust flanges
- TIG double side welded joints for strength and leak resistance
- Bolt-on replacement that follows factory routing and mounting points
- Includes headers, gaskets, and hardware as shown in the product images
Data
Specifications
| Material | T304 Stainless Steel |
|---|---|
| Design | 3-1 Shorty Header |
| Inlet Size | 1-5/8 inch OD |
| Outlet Size | 2-7/16 inch ID |
| Flange | CNC Machined, 2-Bolt |
| Package | 1x Pair of Headers, Gaskets, Hardware |
Material
Materials
- T304 stainless steel headers
- CNC machined flanges
- Exhaust gaskets
- Hardware (bolts, nuts, washers)
Manufacturing
How It Is Made
Tube bending to match the factory shorty header routing
Flange machining on CNC for precise bolt hole alignment and flat sealing face
TIG double side welding of flanges to headers for strength and leak resistance
Final fit check against the flange pattern before packing
Checks
Quality Control
- Flange bolt pattern and sealing face checked before welding
- Weld seams inspected for pinholes and gaps along the full joint
Private Label
Customisation Options
- Private label packaging and barcode labels on request
- Bulk cartons available for container orders instead of individual retail boxes
Comparison
Compared With The Alternatives
| Factory cast iron manifolds | The stock manifolds are heavier and prone to cracking under heat stress; this one is lighter and more durable |
|---|---|
| Mild steel aftermarket headers | Mild steel is cheaper but rusts at the flange; T304 stainless resists corrosion and lasts longer |
| Universal cut-to-fit headers | A universal header requires cutting and welding; this one bolts on without modification |
Installation
Use Guide
- Confirm the vehicle is a 2011-2015 Ford Mustang 3.7L V6 D2C and not a 2016-2017 model
- Let the engine cool completely before removing the factory manifolds
- Replace the factory gaskets rather than reusing them to prevent leaks
- Torque the flange bolts evenly in a cross pattern to maintain sealing face flatness
- Recheck flange torque after the first heat cycle to ensure no loosening
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Answers
Questions About This Part
Will this fit a 2016 Ford Mustang 3.7L V6?
No. The part is designed for 2011-2015 Ford Mustang 3.7L V6 D2C and does not fit 2016-2017 models.
What is included in the package?
One pair of exhaust headers, gaskets, and hardware as shown in the product images.
Is the flange already attached or do I need to weld it on?
The CNC machined flange is already welded to the header. The headers ship as a complete kit.
What material is used and why does it matter?
T304 stainless steel is used for its resistance to heat and corrosion. It outlasts cast iron and mild steel in high-temperature environments.
Can I install this myself or is professional installation required?
Professional installation is highly recommended. The fitment requires precise alignment and torque control to prevent leaks.
Can we get our own brand on the box?
Yes. Private label packaging and barcode labels can be arranged, and bulk cartons are available for container orders.
Is this street legal in my country?
Emissions regulations vary by region. We do not claim emissions compliance for this part. Check your local laws before resale.
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