When you do a 1.8 conversion, the cam angle sensor moves to the other side of the head and the stock wiring harness isn't long enough. You can splice in an extension, but that adds failure points on a harness that's already prone to vibration-related problems. This extension is a plug-in extension with factory connectors on each end. Click, click, done.
30 cm (12") long.
To suit NA MX5's 1989-1993