With the SCT X4 Performance Programmer, you have the option to load custom tunes or to use the X4 programmer to maximize the stock parameters. Since our test subject just received a stage 2 cam and springs, it needed a full custom tune. We used the SCT X4 to load this custom tune, and we can also return the SUV back to stock if we need to. All the while, the custom tune is still saved in the X4 programmer for reloading again.
You can purchase the X4 Programmer for $399 from https://sctflash.com and they have a huge network of tuners around the country.

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