Link Plug-In G4X ECU for Honda/Acura K Series

Link Plug-In G4X ECU, Honda / Acura K-Series

If you want a real K Series ECU upgrade without hacking your harness, this Link Plug-In G4X ECU is the clean way to do it. It’s a true Honda plug-in ecu and Acura plug-in ecu that drops into the factory ECU enclosure for supported cars, so you keep the OEM connector and you don’t spend your weekend chasing wiring gremlins. We run Link gear on our own cars because it tunes predictably and it doesn’t play games when you’re trying to make repeatable power.

This is Link’s latest G4X ECU, with an onboard 7 bar MAP sensor, fast processing, and serious logging. It works for everything from a bolt on street car to a built turbo setup where you actually need control you can trust. It’s manual transmission ecu only, and it’s sold as a board only, so you reuse your ECU case. No, that’s not as convenient as a complete box, but it keeps the factory look and fit.

On the tuning side you get sequential fuel, accurate ignition control, VTEC and VTC, boost by gear, launch control, traction control, and CAN comms. That’s the stuff you use when you’re trying to make a fast car behave, not just make a dyno graph.

Compatible with K20A, K20A2, K20A3, K24A1, and D17A1 ECUs this is the perfect solution not only for RSX and EP3 Civic Si, but the EM2/ES1 crowd and K Swaps into older Golden Era Honda's utilizing 02-04 RSX wiring. 

Vehicle Compatibility (Manual Transmission Only)

• Honda Integra Type R DC5 (2002–2004) K20A
• Acura RSX (2002–2004) K20A2/K20A3
• Honda Civic Type R EP3 (2001–2005) K20A
• Honda Civic Si (2002–2005) K20A3
• Honda Civic DX / LX / HX (2001–2005) D17A1 / A2 / A3
• Honda CR-V (2002–2004) K24A1
• K Swaps Using Engine/Transmission from Above

Key Features

• Link G4X plug-in ECU for Honda and Acura applications, a legit k series performance ecu
• Fits inside the factory ECU enclosure, board only, ECU case not included
• No factory wiring mods required on supported vehicles
• Manual transmission only
• Onboard 7 bar MAP sensor
• Supports most factory OEM features
• Up to 6D fuel and ignition mapping
• Sequential fuel injection and digital OEM trigger support
• Closed-loop cam control, up to four cams, independent
• Launch control, flat shift, and antilag for motorsport use
• 512MB onboard data logging memory
• USB tuning cable included
• CAN communication with 4 pin powered CAN connector
• Protected 12V CAN power supply with self resetting 3A fuse

Important Notes

• Verify your ECU connector matches the header shown in the product images before you buy
• Not compatible with automatic transmissions
• Requires CANJST4 cable (101-0198) for CAN device connection