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PLM V2 B-series 4-1 Header

You Save: $110.01
Ships: 1-5 business days
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PLM  V2 B-series 4-1 Header PLM  V2 B-series 4-1 Header PLM  V2 B-series 4-1 Header PLM  V2 B-series 4-1 Header PLM  V2 B-series 4-1 Header PLM  V2 B-series 4-1 Header PLM  V2 B-series 4-1 Header


Engine Honda B-Series Application 1994-2001 Acura Integra (All Models), 1992-2000 Honda Civic (B-swap), 1992-1997 Honda Delsol Si VTEC
PLM Power Driven V2 B-series "Bisi" header features a true 4-1 merge to create equal exhaust flow. This header delivers the best peak horsepower gains while utilizing a 2 piece design. This is ideal for all forms of competition; Autocross, Drag racing and road racing.

PLM recommends using their 2.75" extension pipe for an easier installation of this header.

Designed for 1.8L-2.0L engine displacement.


  • Known as the 'Bisi' 4-1 header
  • Made from 18-gauge 304 brushed stainless steel
  • True 2.65" inch collector
  • Hand TIG welded
  • A/C and P/S compatible
  • CNC-ed machined manifold flange
  • Measure at .049" to .050"
  • One year warranty
  • OEM spec header gasket
  • OEM spec donut gasket
  • Two piece design
  • Half core radiator must be used

Product Reviews


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"Great product happy with the welds and how clean and nicely wrapped everything showed up. Showed up on time which was another plus. Only issue was the pipes had to be slightly pulled apart to get the other half to slide on and had a couple minor imperfections such as scratchs but I was very satisfied with the product ! Thanks again guys! Next time hook me up with a sponsor and I'll buy even more ;)"

Eric Bowman on 7/25/2017 4:56:39 PM

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