Link G4X K20X Plug-in ECU

Plug-In Precision for the Honda K20.

The Link G4X K20X Plug-in ECU is a direct replacement for the factory ECU on Honda K20-powered vehicles, using the OEM ECU connector for a clean, no-cut installation. Built on Link's latest G4X platform, it delivers professional-grade engine management with the full feature set of a standalone ECU — without the complexity of a custom wiring harness.

Key Features

• True plug-in fitment — uses the factory Honda ECU connector; no cutting or splicing required
• Link G4X platform — 32-bit processor with advanced closed-loop control and real-time tuning
• Sequential fuel & ignition control — full individual cylinder management for maximum power and efficiency
• Onboard wideband lambda input — direct Bosch LSU 4.9 sensor connection for precise AFR feedback
• Knock control — built-in knock detection to protect your K20 under high-boost conditions
• Flex fuel compatible — seamlessly tune across the full ethanol range, E0 to E100
• CAN bus communication — integrates with Link dashes, PDMs, CAN keypads, and third-party devices
• Launch control, flat shift & traction control — full motorsport feature set included
• Pre-loaded base map — K20-specific starting tune to get you up and running quickly
• PCLink software — intuitive, feature-rich tuning interface with active support community

The K20 Deserves Better Than Stock.

Whether you're building a naturally aspirated track weapon or a turbocharged K-series monster, the Link G4X K20X gives you the control and flexibility to extract every last rev. Drop it in, load the base map, and start tuning — it's that straightforward.

Vendor: Link ECU | Fits: Honda K20-powered vehicles (verify fitment for your specific chassis) | Part Number: G4X-K20X