#4607, "RE: diy auto tune or symtech" In response to In response to 0
The DIYAutoTune ECU is not configured for the 420A and does not include any add-on hardware (i.e. launch control) or the option for such. The SymTech ECU is configured for the 420A, and you can opt to have add-on hardware installed at the factory.
Do you plan on completely removing your stock ECU? If so, there are a few other things you'll need for the job.