• 3/8" thick CNC laser-cut flanges
• 1 7/8" Primary Tubes
• Patented JBA Firecone® collector
• O2 sensor provisions
• Large diameter mandrel-bent steel tubes
• Oversized exhaust ports

Installation Notes

Instructions: Instruction Sheet

Estimated Installation Time: 5 hours

Installation Footnotes

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.

• 3/8" thick CNC laser-cut flanges
• 1 7/8" Primary Tubes
• Patented JBA Firecone® collector
• O2 sensor provisions
• Large diameter mandrel-bent steel tubes
• Oversized exhaust ports

Instructions: Instruction Sheet

Estimated Installation Time: 5 hours

Installation Footnotes

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.

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

Application Notes:

JBA Performance Exhaust 6689SJS Header Long Tube Stainless Steel 1 7/8" 15-19 Mustang 5.0L Silver Ceramic