HA Motorsports ECU Jumper Harness — "KTuner Jumper"

HA Motorsports ECU Jumper Harness — "KTuner Jumper"

The adapter that lets an 05-06 RSX ECU run on an 02-04 style engine harness. If you're going to KTuner on an older chassis, this is the piece that makes it possible — the connector pinouts changed between generations, and without the jumper the newer ECU won't plug in.

Three applications: installing an 05-06 RSX ECU into an 02-04 RSX, into an 02-05 EP3 Civic Si, or into a K-swap running an 02-04 style engine harness. That last one covers a lot of ground — most swap harnesses on the market are built to the 02-04 pinout.

Built with all new OEM connectors for OE-quality fitment, and wired with cross-linked automotive TXL wire that exceeds OEM specification. Designed and built in the USA.

Manual transmission vehicles only.

Order this with the ECU. It's the part people discover they need after the ECU shows up and won't plug in — and on a K-swap, it's the difference between the car running that weekend and waiting on a shipment.