JARblue

The one with SZ tune in the file name is the one you are paying Seb to custom build for your car. Funny that Stock Z can also be abbreviated the same way though - your confusion makes sense at least.

Your choices are virtually unlimited. Seb can build any map you want, so you can have a variety of maps customized to your liking. You just have to tell him what you want.

Once you have a base tune with the mods installed, then you can do some logging for Seb. That way he is customizing the tune for your Z instead of giving you a generic tune that doesn't necessarily take advantage of the go-fast parts you have installed.

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