I built a DIY ignition cut for my winter beater — a 2006 Subaru Legacy 2.5i. My settings are intentionally pretty soft since I’m still running the stock exhaust manifold with the catalytic converter in it, and I definitely don’t want to melt that thing 😅

I tracked down the fuse that supplies 12 V to the ignition coil and rerouted it through a relay, which I now control with an Arduino.