• Compatible with:
  • 1997-2004 Chevy Corvette 5.7L V8
  • Performance 4-1 Racing Design
  • TIG Welded CNC Machine Flange for Strength and Durability
  • Inlet/ Outlet Sizes: 1-7-8 in. OD / 3 in. OD
  • Piping Diameter: 3 in. 
  • O2 Sensor Bungs
  • Increase Engine Output and Efficiency
  • Gain 10 - 15 HPs
  • Bolt(s) and Metal Gasket(s) Included
  • Direct Bolt-On Installation, Requires NO Modification
  • Bolt-On Installation on 3 in. 2-Bolt Ball Flange Extension Pipes Only

    • Package Includes:
  • 1 X Pair of Exhaust Manifold Headers (Left & Right)
  • 1 X Set of Gaskets
  • Hardware as Shown in the Picture Above