societymx

I have a Diablosport Predator and I finally got a new tune from them that will hopefully work with my car. Do I have to set the car back to stock before I download the other custom tune to it, or can I download it right over the other tune? Are there any other steps I have to take not to screw anything up? Thanks.

Simon1

I change from my 91 tune to my 100 oct tune all the time without flashing back to stock.

Heavyg72

I use the SCT and can switch from tune to tune without going to stock which I can't anyway! ;-)

ski

Their website has "how to" instruction files for what you want to do. Just plug in your tuner's model # to get to the correct webpage.

sactown

Don't need to return to stock first, just load the new tune.

ski

Oops, misread your post. Thought you were asking how to load a custom tune from your PC to the Predator. Sorry 'bout that.
Install the new tune over the old one in the car's ECU, as stated by the others.

societymx

Got'er done folks. Thanks.

157dB

If the stock tune resides on the tuner that has the new tune
on it to be loaded, then yes, you can load a new tune without
first reloading to the stock tune.