B-Series B16 B18 B20 2.5 Collector Stainless Steel Exhaust Manifold 4-1 for Honda Civic Acura Integra

Part Number: 720053571035
Bull Boost Performance
$289.95 $349.95
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Estimated Time for Delivery: 6 Weeks.
RMF Version 2 header features a true 4-1 merge collector, with a megaphone to create equal exhaust flow & delivers the best peak horsepower gains while utilizing a 1-piece design. 

  • 304 brushed stainless steel
  • True 2.5 inch collector
  • Megaphone with reverse cone
  • Hand TIG welded
  • A/C and P/S compatible (slim fans required)
  • CNC machined manifold flange
  • One year warranty
  • 18 gauge, 304 stainless steel
  • Includes OEM spec header gasket 
  • Includes OEM spec donut gasket 
  • One piece design
  • Includes skid plate
  • Half core radiator must be used
  • Recommended for 1.8L-2.0L engine displacements

Fits all B-Series motor in 94-01 Acura Integra, 99-00 Honda Civic Si DOHC, and Delsol with the DOHC motor except B20 CR-V block unless you have a different oil pan.  *This is a 2.5" Collector, you will need a 2.5" inlet exhaust or a High Flow Cat that accepts this 2.5" Manifold.