Rywire '02-'04 Honda K-Series Mil-Spec Engine Harness w/OBD2 02-04 RSX K20 Sensors (Adapter Req) [K2-MIL-SPEC]

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Rywire Motorsport Electronics is known for the production of some of the highest quality engine harnesses on the market today. These harnesses use premium grade wiring which may even include military specifications for some applications. With this, Hybrid HyperSport is proud to offer Rywire’s amazing product line to our customers! Check out this listing:



2002-2004 Honda K-Series Mil-Spec Engine Harness



Version 2 of the Rywire K-series Milspec Engine Harness

This version was created to facilitate a more universal chassis, and harness routing preference. This style can be routed more like the OEM k-series engine harness through the center or more to the right on the firewall than its Version 1 counterpart. This routing method is ideal for our (RHD) Right Hand Drive customers however NOT exclusive to RHD chassis and does work fine on a LHD chassis.

Version 2 is also routed in a way which allows you to get around aggressive exhaust manifolds.

More About the Mil-Spec K-Series Engine Harness:

This harness offers Mil-Spec Teflon coated wire. Standard wall ethylene-tetrafluoroehtylene (ETFE) insulation (also known as Tefzel ) designed for aerospace applications where weight, dimensional tolerance, and mechanical durability are required. This wire exhibits high chemical and radiation resistance. using standard factory wire colors with a maximum heat rating of 200°C. The Teflon coated wire is loomed with the highest quality Raychem DR-25 heat shrink covering, and adhesive lined wire junctions to keep moisture out. Each connector is crimped with pneumatic heads to ensure an OEM crimp every time, then tagged with a yellow identification label for easy installation. All heavy interference circuits are protected and grounded with proper wire covering.

Our Mil-Spec harnesses are 100% quality tested pin to pin, and resistance checked to ensure no voltage fluctuations. These are the best harnesses money can buy. NO CORE is necessary when buying a harness from us!

This harness follows an OEM style configuration meaning that you'll still need an interior Computer adapter for your chassis - see the K-Series Computer Adapter link and add-option below!

Rywire also offers a Firewall mounted Mil-Spec connector that will allow easy engine removal for quick engine changes and customization. It can be added along with the Mil-spec Firewall Plate for a show-quality setup.

These harnesses are warrantied and guaranteed to work, we provide excellent installation phone support and troubleshooting to ensure this reputation for quality, however they are non-refundable.


  • VTEC solenoid
  • VTC
  • Oil pressure sending unit
  • Crank Sensor (CKP)(02-04 K20 style)
  • Coils 1-4
  • Cam (CPS) Exhaust Side
  • Top Dead Center sensor (TDC) Intake Side
  • Engine Coolant Temp (ECT)(02-04 K20 style)
  • Knock Sensor (KS)(02-04 K20 style)
  • Intake Air Temperature (IAT)
  • Alternator
  • Manifold Air Pressure (MAP)
  • Throttle Position Sensor (TPS)
  • Idle control motor
  • Electronic speed sensor (VSS)
  • Injectors 1-4
  • h20 sending unit (for gauge cluster)
  • Reverse Lights
  • Reverse Lockout solenoid
  • Starter signal
  • Computer plugs A and B
  • Power distribution cap
  • Ground
  • 2 Extra Wires


Part Number: K2-MIL-SPEC

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