BMW’s Bosch ECUs were untunable for good 3 years when new hardware encryption thats german military grade was first introduced with the F10 M5 and F8X M3/M4. For those first 3 years of the platform, all we had was piggback tunes which is essentially rerouting sensor values to your piggback tune box then back to the car where you trick car into thinking its providing X psi boost rather than Y. You do the same with fuel sensors and boost solenoids. Some of these may not apply to ZR1 but conceptually thats what you do. End result is not so smooth tune where you dont have full control over all the parameters but you let car’s ECU adapt to these fake parameters.

That being said, even that hardware encryption is now history. You can break into the Bosch ecus by drilling on to the ECU itself (just the cover), inserting a few diodes on to the circuit board and reading the hardware key right there which is unique to that ecu. It requires you to ship your ECU to the tuner and obviously bye bye warranty but it can be done.

i dont know if the encryption in this zr1 ecu is of same type. If so, then its going to require a lot of time and investment from tuners.

See my post above for piggyback tune. I m sure there will be a $500 plug and play tune but I highly recommend against it. You are essentially constantly challenging the ECU by providing wrong values. From a software and algorithm standpoint, you may get some tangible changes on the dynamics of the car but guaranteed it will have lots of side effects.

It doesnt, thats the point.

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Sorry to pop your bubble Ben, but there are others who have gone 9s.

I rarely drive mine. Between work and my kids, I just don’t have time. I’ve just been slowly reverse engineering the data system.

Hows that going? Any hope in sight?

You Tube

You won’t because they have not done it yet. They are just foolish enough to advertise and maybe even take in cars hoping they can deliver in the future.