Plug & Play Haltech Nexus R3 Harness – Lexus IS300 2JZGE VVTi

(1 customer review)


Our Plug & Play Adapter Harness for the Lexus IS300 2JZGE to Haltech Nexus R3 is the perfect Plug N Play solution to get your 2jz running to it’s full potential on the legendary Haltech Nexus R3 VCU. We have spent years developing this plug and play harness that fully supports all of the Nexus R3 ecu’s functions to best compliment the 2jz engine including: boost, knock, engine protection, fuel pressure compensation, VVTI, 12 position map switching and the OEM Drive By Wire to name just a few. Turn key Turbo IS300 packages with ECU, Harness, Injectors, sensors and full tune available using this exact ECU package!
Package your ECU + Harness and sensors below to save over $200.

Haltech Nexus R3 ECU, options & upgrades

Add the matching Nexus R3 VCU, IO expansion module/wiring and optional Automatic trans control.

  • haltech nexus r3

    Special package pricing for Haltech Nexus R3 VCU when purchased with plug n play harness.

  • r35 DCT

    Option for Automatic transmission cars to move full trans control to Haltech Elite ECU. Recommended BUT NOT required for automatics.

  • Pre wired harness for IO expansion module *Recommended option for ECU controlled Automatic trans with 12 pin DTM harness.*

  • Haltech IO expansion module

    Haltech IO Expansion Module, used for addition inputs/outputs on Elite/Nexus series Haltech ECU's.

  • 12 pin DTM connector

    12 pin DTM connector pre wired to Nexus R3 input/outputs perfect for adding sensors/acc such as flex fuel, fuel pressure and traction control.

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