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

98-02 STEP CAMARO/FIREBIRD FULL LENGTH LS1- BLACK MAXX

98-02 STEP CAMARO/FIREBIRD FULL LENGTH LS1- BLACK MAXX

Product Specifications

(PLEASE REVIEW THE FOLLOWING PRODUCT SPECIFICATIONS & FOOTNOTES THOROUGHLY)

  • Tube Diameter 1-5/8 in. x 1-3/4 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.
  • Finish BLACK MAXX Satin Black Ceramic-Metallic
  • Finish Type BLACK MAXX- Black Ceramic-Metallic Coating
  • Flange Style Standard
  • Flange Thickness 0.375 in.
  • Header Port Shape Round
  • Header Style Long Tube- Stepped
  • Notes 98-02 Camaro. Firebird LS1 (Stepped)
  • Port Shape Round
  • Power Steering Yes
  • Installation Notes Y-pipe available and recommended for an easier install.
  • Material Mild Steel
  • Tube Design LONG TUBES- STEPPED
  • Tube Length Long Tubes
  • Tube Material Thickness 18g
  • Tube Size 1-5/8 in. x 1-3/4 in.
  • Variations 68534
  • 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
  • Transmission Mount/Crossmember (Included) No
  • Y-Pipe Included No
  • Quantity Sold as a pair.
  • Primary Tube Gauge 18g
  • 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 BLACK MAXX Satin Black Ceramic-Metallic
  • Cylinder Head Port Shape Round
  • Cylinder Head Stock Profile Heads
  • Header Construction Standard-Duty
  • Replacement Gasket 27470
  • Replacement Head Flange Gasket 27470
  • 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(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      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(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
      Vehicle Specific Information
      Air ConditioningYes
      Power SteeringYes
      Auto Transmission - ColumnNo
      Auto Transmission - FloorYes
      Manual Transmission - ColumnNo
      Manual Transmission - FloorYes
      Footnotes(1) Without smog injection or injection heads.
      (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
      (ST) TORQUE-STEP Stepped Tube Design
      Emissions NotesRACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.
      Engine FamilySB CHEVY Gen III/IV (LS engines)
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