JBA Performance Exhaust 6685S 1 7/8" Header Long Tube Stainless Steel 2011-14 Mustang 5.0
Part Number: 6685S
UPC: 694342535186
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JBA Performance Exhaust 6685S 1 7/8" Header Long Tube Stainless Steel 2011-14 Mustang 5.0
Qty: 1Disclaimer
Federal and state "anti-tampering" laws regulate modifications that affect emissions from motor vehicles and prohibit the sale, installation, and on-highway use of any add-on or modified emissions-related part on any pollution-controlled vehicle unless the part has received an exemption from the California Air Resources Board ("CARB") or is considered an exempt or replacement part. If a part has a California Executive Order Exemption (aka an EO #) or meets the requirements for an exempt part such as a Cat Back Exhaust system or is considered a replacement part, it is legal for sale or use in all 50 states. We are required by law to inform you about the legality of parts that we manufacture and sell and will refuse the sale of certain parts if the following requirements are not conformed with. Use of non compliant parts for purposes other than stated can result in a citation, fines, and/or confiscation of the vehicle. For the ordered parts listed below, you must certify, by clicking one of these boxes that you are using the product in the manner stated and for the application as specified by the manufacturer.
We cannot sell this part for use on a 1975 or Newer On Highway vehicle. It will not be added to your Cart.
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- Highlights
- Installation Notes
- Additional Information
- Applications
- Download Instruction Manual
Highlights
- 3/8" thick CNC laser-cut flanges
- Patented JBA Firecone® collector
- O2 sensor provisionscollector
- Large diameter mandrel-bent steel tubes
- Oversized exhaust ports
Installation Notes
- Instructions: Instruction Sheet
- Estimated Installation Time: 6 hours
- Installation Footnotes
- 29 - Matching mid-pipes available.
- 3 - Installation requires welding/modification to exhaust system.
- 57 - Header equipped with 02 Sensor provisions.

JBA Performance Exhaust uses a voluntary product identification program whereby all emission sensitive products can be identified by placing numbered labels in product packaging and listing corresponding numeric codes next to each part number. The corresponding numbers and explanations are as follows:

This product is Not legal for Street or Off Highway use in California or in states that have adopted California Emissions Regulations and is only intended for Closed Course Competition use, except 1965 and older US manufactured California Certified vehicles, 1967 or older US manufactured Federally Certified vehicles, or 1967 and older Foreign manufactured vehicles which may have any aftermarket add-on or modified part installed as long as the vehicle can still meet the tailpipe emissions standards for the year of the vehicle and retain any original or retrofit crankcase control (PCV) devices and NOx device required for the year of the vehicle.
Additional Information
JBA 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" 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. *Standard on 4-1 long tube V8 applications. Not available on Tri-Y headers. 1. 3/8" thick CNC laser-cut flanges • Prevents leaks caused by warping 2. Patented JBA Firecone® merged collector • Increased hp/tq, improved exhaust scavenging 3. O2 sensor provisions • Standard on EFI headers for proper connection 4. Large dia. mandrel-bent stainless steel primary tubes • Maximum flow and high RPM efficiency 5. Oversized exhaust ports • Accommodates ported cylinder heads
Applications
- Application Notes
- JBA Performance Exhaust 6685S 1 7/8" Header Long Tube Stainless Steel 2011-14 Mustang 5.0
Year | Make | Model | Engine |
2011-2014 | Ford | Mustang | 5.0L |
Download Instruction Manual
Emissions Code
PerTronix Performance Ignition and Exhaust Brands use a voluntary product identification program whereby all emission sensitive products can be identified by placing numbered labels in product packaging and listing corresponding numeric codes next to each part number. The corresponding numbers and explanations are as follows:This Product has been granted a California Air Resources Board (C.A.R.B.) Executive Order ("EO") Exemption, or is considered a Direct Replacement or Consolidated Replacement part. It is 50 State Legal when installed on the appropriate vehicle per the Manufacturer Application guide and Installation Instructions.
This product is Legal for use on 1974 and older non catalyst equipped vehicles and is considered a Replacement Part per California Air Resources Board regulations, as long as ALL emissions sensitive components are retained, including A.I.R., EGR, Heat Risers etc. Failure to retain any of these components, or use on any 1975 or newer catalytic converter equipped car would render this product Illegal for Street or Off Highway use in California, or in states that have adopted California Emissions regulations and may only be used for Closed Course Competition.
This product is Not legal for Street or Off Highway use in California or in states that have adopted California Emissions Regulations and is only intended for Closed Course Competition use, except 1965 and older US manufactured California Certified vehicles, 1967 or older US manufactured Federally Certified vehicles, or 1967 and older Foreign manufactured vehicles which may have any aftermarket add-on or modified part installed as long as the vehicle can still meet the tailpipe emissions standards for the year of the vehicle and retain any original or retrofit crankcase control (PCV) devices and NOx device required for the year of the vehicle.