Emtron ECUs: SL and KV series

About Emtron

Emtron is professional motorsport engine management. The SL4 and SL6 are compact wire-in units; the KV8, KV12 and KV16 scale up for V8s, staged injection and big-power builds.

Every Emtron is a wire-in ECU, so it needs a harness built for the car. We build that, install it and calibrate it on our hub dyno, or ship you the unit to fit yourself.

Questions before you buy

Which Emtron do I need?

It comes down to how many injectors and ignition outputs the engine needs and what else the ECU has to run. Call with the engine and the plan for it and we will tell you which unit, and why.

Is DEFI an authorised Emtron dealer?

Yes. Every Emtron unit here is sold at the price authorised dealers advertise, stocked in Corona, CA, and shipped free in the continental US. Alaska and Hawaii are quoted by phone.

Can you install and tune a Emtron ECU?

Yes. We install, wire and calibrate Emtron engine management in our Corona shop and tune it on a Mainline ProHub hub dyno, with the full sheet at the end. Shop labor is quoted against your car.

Can I return a Emtron ECU?

No. There are no returns or exchanges on third-party hardware once it ships, and the manufacturer’s warranty is the warranty. Call before you order if you are not sure which unit fits.