6613S Long Tube Headers for Select 1965-1973 Ford Mustang
InfoVehicle Info Needed
JBAPART NUMBER: 578-6613S

6613S Long Tube Headers for Select 1965-1973 Ford Mustang

$94490
ShippingShips on 12/07/2026
Lowest PriceLowest Price Guarantee

Ford Long Tube Headers
Long Tube Headers
  • 1965-1973 Ford Mustang w/ 289/302
  • 1971-1973 Ford Mustang w/ 351W
  • Stainless Steel
  • 1-5/8" Primary Tubes

    JBA 6613S Long Tube Headers for Select 1965-1973 Ford Mustang Features:

    • 3/8 in. thick CNC laser-cut flanges
    • Firecone merged collector that improves exhaust scavenging 
    • Larger in size mandrel bent stainless primary tubes give great flow and efficiency at a high RPM
    • Exhaust ports are oversized to accommodate ported cylinder heads

    JBA 6613S Long Tube Headers for Select 1965-1973 Ford Mustang Notes:

    • Will NOT fit with a C6 transmission
    • May need Z-bar modification
    • Must be used with taller 1966 1/2 or later frame brackets 
    • Will fit with a 5-speed manual transmission with an aftermarket crossmember
    • Will fit with a Borgeson power steering box conversion
    • Works with power steering equipped vehicles when the 6656P ram drop down bracket is used

    Emissions Note:

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    • Achieve More Power With JBA Long Tube Headers

      JBA long tube headers are dyno and race-proven to deliver the best 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,  thick 3/8 in. one-piece flanges, and patented JBA Firecone merged collectors for smooth flow. JBA designs these header systems to give the maximum ground clearance possible so lowered cars do not drag the collectors on speed bumps. The headers include high-quality hardware and thorough instructions for a professional no-leak installation. 

    Part TypeHeader
    Product LineJBA Ford Long Tube Headers
    BrandJBA
    Package Height10.0
    Package Width21.0
    Package Length44.0
    Weight35.0 PG
    Part CategoryPerformance Parts
    Gaskets IncludedYes
    Hardware IncludedYes
    Mandrel-BentYes
    Part FitmentSemi Universal
    Primary Tube Outside Diameter1.625 in (41.275 mm)
    FinishNatural
    Flange Thickness (In).375
    Gauge16
    Vendor Part Number6613S
    Package Qty1
    Package TypeEA

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