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Link G4 Plug-in ECUs from $1890 ($1680+GST)

The new G4 range of plug-in ECUs are designed to be the most complete plug-in solution yet. There are no adaptor harnesses required nor do you need to make mounting brackets or try and fit differently shaped ECU into the space allowed by the factory. All of this can be achieved because the G4 plug-ins retain the enclosure and mounting brackets of the factory ECU. The OEM circuit board and header plug is removed and replaced with a flexible and easily tuneable G4 unit. Once the installation is completed the upgrade is visually undetectable except for the USB cable which remains for tuning purposes.

In all cases the engine can easily converted to speed density by removing the air flow meter and installing a suitable MAP and air temperature sensor.

All G4 plug-in ECUs come with a base map. While these maps are designed to help save time for you and your tuner, it is essential that these are used simply as a starting point for further tuning.

For technical details on the G4 family of ECUs see the 'Link G4 ECU range' section.

The following G4 plug-in ECUs are available:

Nissan Skyline R32/33 This is our most popular plug-in. This system is suitable for most twin-cam RB engines using a manual transmission as detailed below. Automatics are not supported.
R32 RB20DE
R32 RB25DE (with or without turbo)
R32 RB20DET
R33 RB25DE with VTC (with or without turbo)
R33 RB25DET with VTC
R32/R33/R34 RB26DETT
custom RB30DET using either R32 or R33 RB25 head and loom

Nissan Skyline R34 suitable for the R34 GT-T with an RB25DET Neo engine and manual transmission.

Nissan Silvia S13 CA18DET suitable for manual transmissions only. Sorry no plug-in is available for the S13 red-top SR20DET.

Nissan Silvia S14 suitable for the pre-facelist S14 with SR20DET engine and manual transmission.

Nissan Silvia S14a/S15 suitable for the facelift S14 and S15 Silvia/200SX with SR20DET engine and manual transmission.

Mitsubishi Galant VR-4 suitable only for E38A/E39A with 4G63 single turbo engine

Mitsubishi Evolution 1-3 suitable for early Evolution models with 3-plug ECU

Mitsubishi Evolution 4-8 suitable for these Evolution models with 4-plug ECU

Mitsubishi Evolution 9 uses continuously variable cam timing on the inlet camshaft (MIVEC).

Subaru V1-2 - suitable for the single turbo RS Legacy, and 92-96 V1 & V2 WRX/STI. These all use a 4-plug ECU

Subaru V3-4 - 97-98 WRX / STI using a 3-plug ECU.

Subaru V5-6 - 99-00 WRX / STI

Subaru V7-9 - 01- WRX / STI models with 2.0L engine with continuously variable cam timing but without drive-by-wire throttle.

Mazda MX5 - supports 1.6L and early 1.8L models

Mazda 323 / Familia GTX & GTR - Ford TX3 4x4 turbo also supported.

RX7 Series 6 - FD3S 92-95. Seamless staging, superior leading/trailing ignition control, supports oil metering pump, DOES NOT support factory sequential twin turbos.

RX7 Series 7 - FD3S models produced after 1995

Honda ODB1

Honda ODB2a - Sorry, no plug-in is available for ODB2b models

Toyota Celica - some ST185 and ST205

Toyota MR2 - SW20 3S-GTE Rev 2 and 3

Holden VL Turbo - suitable for single-cam RB30ET engine. This ECU may also be used on some single-cam Nissan RB engines.

Is your car not on the list? NZEFI can create a custom adaptor loom to allow your vehicle's stock wiring loom to plug into the engine management system of your choice.

Custom made adaptor looms from $300 with ECU purchase.


All prices are in New Zealand dollars and include goods and services tax (GST) of 12.5%. For overseas orders GST does not apply.
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