2015-2019 Mustang GT Long Tube Headers


JBA Headers 6689SJS

Exhaust Header; Long Tube Chassis Exit; 1-7/8 Inch Primary Tubes; With 3 Inch Diameter JBA Firecone ® Collectors; With V-Band Clamp Collector Attachment; 3/8 Inch Thick Head Flange; Stainless Steel Ceramic Coated Finish


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SKU: 6689SJS Category: Brand


2015-2019 Mustang GT Long Tube Headers

The 2015-2019 Mustang GT Long Tube Headers are the number one choice for maximum performance gains and high RPM efficiency. These long tube designs are dyno and race proven to deliver the greatest possible increase in Horsepower and torque throughout the RPM range. All JBA long tube headers feature large mandrel-bent stainless steel primary tubes, oversized exhaust ports, extra thick 3/8 Inch one piece flanges, and patented JBA Firecone® merged collectors for smooth flow. Each system is designed to give the maximum amount of ground clearance possible so lowered cars do not drag the collectors. Each system includes high quality hardware and thorough instructions for a professional no-leak installation.

2015-2019 Mustang GT Long Tube Headers

Style: Long Tube
Exit Location: Chassis Exit
Primary Tube Diameter (IN): 1-7/8 Inch
Collector Diameter (IN): 3 Inch
Flange Type: Stock
Flange Thickness: 3/8 Inch
State Legal: 49 State Legal
Color/ Finish: Silver Ceramic Coated
Material: Stainless Steel
Includes Bolts/Studs: Yes
Includes Gaskets: Yes
Includes Reducers: No
Welding Required: Yes


2015-2019 Mustang GT Long Tube Headers


  • 3/8 Inch Thick CNC Laser Cut Flanges. Prevent Leaks Caused By Warping
  • Patented JBA Firecone® Merged Collectors For Increased Horsepower/Torque And Improved Exhaust Scavenging
  • Oxygen Sensor Provisions. Standard On EFI Headers For Proper Connection
  • Large Diameter Mandrel Bent Stainless Steel Primary Tubes Provides Maximum Flow And High RPM Efficiency
  • Oversized Exhaust Ports. Accommodates Ported Cylinder Heads
  • Stainless Steel Construction Gives Maximum Durability And Minimizes Exhaust Noise
  • Limited 1 Year Warranty


Prop 65 WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

The installation is very important.

Our Header installers are the best in the industry. The system is completely checked. No rattles, leaks or crooked parts here!

Header Installation & Hookup Available

We all know that the right tools for the right job is very important. At FMS Performance we believe that using the the right tools for header Installation starts with the right installer.

Our technicians have been professionally educated and have completed industry degrees from accredited schools. They also continue their education with a daily practice and updates when available.

FMS has a specialist for each segment of installation. We prefer to supply you with the parts we install but we can install your supplied products as well.

FMS Performance offers and installs cold air intake kits. Installing and custom building performance exhaust systems. Our stores install automotive computer tuners.  headers. superchargers.  tonneau covers.  suspension kits, lowering and lifting. We install shocks and struts. FMS offers complete brake kit or brake service. We mount and balance wheels and tires.

We can help with almost anything truck accessory related. For your convenience you can select the button below for a quote or appointment. Check us out on FaceBook.

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