Buy Product: 4-1 STAINLESS DRAG MANIFOLD HEADER/EXHAUST 88-00 CIVIC/CRX/DELSOL D15/D16

Product Information:

 

  • Made of High Quality T-304 Stainless Steel with Computerized Mandrel-Bends for Strength and Durability
  • i.e. Maximizing Smoothest High Exhaust Air Flow Rate
  • 4-1 High Performance JDM Racing Spec. Tubular Design, Ensuring Equal Air Flow Ratio
  • TIG Welded CNC Machine Flange
  • Inlet/ Outlet: 1.500″ X 1.250″ (4 X Oval)/ 2.375″
  • Header Main Piping Diameter: 2.500″
  • Extension Adaptor Pipe Included
  • Adaptor Pipe Outlet (Outer)/ Piping Diameter: 2.00″/ 2.00″
  • O2 Sensor Bung Insertion; Metal Gasket Included
  • Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.
  • Direct Bolt-On Installation
  • 100% Brand New
  • Professional Installation is Highly Recommended (No Instruction Included)

 

Written Instructions

  • Raise vehicle.
  • Remove 2 bolt from the manifold to the catalytic converter.
  • Remove 3 nuts from the lower section of the manifold then remove.
  • Remove the o2 sensor from the manifold; remove the old dip stick.
  • Loosen all 9 of the nuts from the manifold.
  • Remove the factory gasket; install new supplied one.
  • Install the new header onto the engine; reinstall the 9 nuts.
  • Install new gasket and hardware.
  • Install the connecting pipe from the header to the catalytic converter.
  • Install the last gasket and hardware; tighten the bolts

Sound test included in video.