Ignitions and Electrical› Computers, Chips, Modules and Programmers

Link ECU

G4X XtremeX ECU

$2,274.65

SKU: LINK-ECU-109-4000

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Overview

The Link G4X XtremeX ECU is a premium engine control unit designed for professional motorsport or demanding road car applications. It features built-in E-throttle, Anti-lag, Cruise Control, and Traction Control capabilities. With 8 injector drives and 8 ignition drives, it can manage engines with up to 4 rotors or 8 cylinders, supporting sequential injection and direct spark.
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The Link G4X XtremeX ECU represents a top-tier engine management solution with an extensive array of inputs, outputs, and advanced features. This unit is equipped with built-in E-throttle and sophisticated motorsport functions including Anti-lag, Cruise Control, and Traction Control. Its robust configuration includes 8 injector drives and 8 ignition drives, enabling precise control for engines up to 8 cylinders or 4 rotors with sequential injection and direct spark. The XtremeX is an ideal choice for competitive motorsport environments and high-performance road vehicles requiring advanced engine tuning. Key specifications include 8/10* digital inputs, 4 temperature inputs, 11 analog inputs, 2 trigger inputs, and 2 knock inputs. For outputs, it offers 8 injection drives, 8 ignition drivers, and 10 auxiliary outputs, along with +5V and +8V sensor power supplies. Communication is facilitated by dual CAN bus interfaces, a serial (RS232) connection, and a USB tuning connection, all boasting faster performance than previous G4+ models. It also features 512 megabytes of internal data logging capacity. Installation and setup require specific components. The XtremeX ECU *requires “A” & “B” looms or “A” & “B” connector kits, which are sold separately. For integrated digital wideband lambda control, separate components like CANLTW and CANLAM are necessary. It is important to note that for peak & hold functionality, a G4+ Xtreme ECU should be purchased instead. Advanced features beyond those found on the Storm ECU include fully programmable E-throttle control with gear shift throttle blip and antilag capabilities, dual independent CAN modules, and comprehensive motorsport features such as advanced closed-loop lambda strategy and dual-bank lambda control. The ECU comes supplied with a USB tuning cable and a mounting bracket.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandLink ECU
Part NumberLINK-ECU-109-4000
CategoryIgnitions and Electrical

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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