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What happens when you use standard headers on aftermarket cylinder heads?

STEPPED-HTC Headers; 1-1/2 in. x 1-5/8 in. Tube Dia.; FULL LENGTH Design

STEPPED-HTC Headers; 1-1/2 in. - 1-5/8 in. Tube Dia.; 3 in. Coll.; FULL LENGTH Design

Part#88696
$725.63
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Product Specifications

(PLEASE REVIEW THE FOLLOWING PRODUCT SPECIFICATIONS & FOOTNOTES THOROUGHLY)

  • Tube Diameter 1-1/2 in. x 1-5/8 in.
  • Tube Style Long Tube (Stepped)
  • Collector Style Ball and Socket Style (Gasketless)
  • Air Conditioning Yes
  • Automatic Transmission - Column No
  • Automatic Transmission - Floor Yes
  • Manual Transmission - Column No
  • Manual Transmission - Floor Yes
  • Collector Attachment 3 in.
  • Collector Size 3 in.
  • Reducer Outlet Size 2-1/2 in.
  • Exhaust System Dia 2-1/2 in.
  • Contents Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
  • E.O. # No
  • Emissions Notes NOT LEGAL FOR STREET USE ON '75-LATER MODEL YEARS! Legal for off-road use only.
  • Engine Version Ford 4.6L Modular
  • Finish HTC Polished Silver Ceramic-Metallic
  • Finish Type HTC SILVER (polished) Ceramic-metallic Coating
  • Flange Style Standard
  • Flange Thickness 0.375 in.
  • Header Port Shape Round
  • Header Style Long Tube- Stepped
  • Notes 96-04 Ford Mustang 4.6L (2V)
  • Port Shape Round
  • Power Steering Yes
  • Material Mild Steel
  • Special Engine Notes 2V SOHC
  • Tube Design LONG TUBES- STEPPED
  • Tube Length Long Tubes
  • Tube Material Thickness 16g
  • Tube Size 1-1/2 in. x 1-5/8 in.
  • Variations 88690
  • with A.I.R. System No
  • with EGR No
  • Weld-Up No
  • Tuned No
  • Bolts/Studs Included Yes
  • Catalytic Converter(s) Included No
  • Collector Bolts Included Yes
  • Crossover Pipe Included No
  • Gasket Or Seal Included Yes
  • Installation Hardware Included Yes
  • Motor Mounts Included No
  • Mounting Hardware Included Yes
  • Reducers Included Yes
  • Y-Pipe Included No
  • Quantity Sold as a pair.
  • Primary Tube Gauge 16g
  • Primary Tube Diameter (in) 1.50 in. x 1.625 in.
  • Package Contents Set of Headers, mounting hardware and gaskets
  • Header Material Mild Steel
  • Header Finish HTC Polished Silver Ceramic-Metallic
  • Cylinder Head Port Shape Round
  • Cylinder Head Stock Profile Heads
  • O2 Provision Yes
  • Header Construction Standard-Duty
  • Replacement Gasket 27450
  • Replacement Head Flange Gasket 27450
  • California Proposition 65 WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov

Vehicle Applications

      YearC.I.D.LiterCylindersDrive Type
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(45) Not legal for sale or use in California on pollution controlled motor vehicles.
      (6) Modification to stock exhaust required to retain catalytic converter.
      (FL) Full Length Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilyFORD 4.6L (2V) SOHC
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