Link G4X EVO9X Plug-In ECU, Mitsubishi Lancer Evolution IX and Evolution VIII (3-Plug ECU)

The EVO9X is Link's G4X plug-in ECU for the CT9A Lancer Evolution IX, and it is also the right unit for any Evo VIII with the 3-plug factory ECU. Link splits the Evo VIII by plug count, not year: 3 plugs take this EVO9X, 4 plugs need the EVO8X (203-4000), and the wrong one will not plug in. It goes into the factory ECU case on the original loom and ships with a startup map.

Fits

• Mitsubishi Lancer Evolution IX (CT9A), 4G63T, 2005-2007
• Mitsubishi Lancer Evolution VIII (CT9A) with the 3-plug factory ECU, 2003-2005

Before you order

• Evo VIII: count the connectors on your factory ECU. 3 plugs: this EVO9X. 4 plugs: you need the EVO8X (203-4000). The split is by plug count, not model year, and the wrong ECU will not plug in.
• Manual transmission only.
• Compare the connector on your factory ECU with the header shown in the product photos before ordering.
• Installation is a board swap into your factory ECU case, closed up with the supplied aluminium end plate.
• Late JDM Evo VIII: the intercooler spray relay is often on a different pin, and Link's manual covers the one-wire fix (loom pin 35 to ECU pin 56).
• E-Throttle ready: wire the throttle through the expansion connector with Link's XS Expansion Loom (101-0106, sold separately). The ECU drives it directly, so no external E-Throttle controller is needed.
• It arrives with a base map that gets the engine started; that is a starting point, not a finished tune. Tuning is done in Link's free PCLink software on a Windows laptop, and the USB tuning cable is in the box.

Highlights

• Controls the Evo IX's MIVEC variable inlet cam timing.
• MAP from the factory sensor on models that have one, selected by a jumper, or the onboard sensor: 4.0 bar absolute on older bottom boards, 7.0 bar on newer ones.
• Uses the factory intake air temperature sensor on non-European-spec cars.
• E-Throttle outputs on the expansion connector, so no external controller is needed.
• Knock input on the factory knock sensor, and two CAN buses for a dash, keypad or CAN lambda.
• G4X feature set: flex fuel, open- and closed-loop boost control, dual closed-loop lambda, engine protection limiters, CAN keypad support and a built-in trigger scope.
• Launch control, anti-lag, traction control, nitrous control, gear shift and paddle shift control, cruise control and a race timer with power management, plus 512 MB of onboard data logging.

Specifications

• Dimensions: 190 x 160 x 30 mm (7.48 x 6.30 x 1.18 in)
• Weight: 260 g (9.17 oz)
• Operating voltage: 6.5-24 V (36 V maximum input)
• Tuning connection: LTW 6-pin USB
• Communications: 2 CAN buses
• In the box: EVO9X ECU, Evo IX aluminium end plate, USB tuning cable, anti-static strap, Link stickers, plug-in manual card and product registration card