[FJtest]

The question doesn't make any sense ... are you certain you understood their question?

There is only one type of FJC roof.

Who is "they"? Frontrunner, or a Frontrunner distributor or dealer?

 

[FJtest]

Communication error - make absolutely sure whoever you are dealing with understands you have a Toyota FJ Cruiser.

Just go to the Frontrunner website and look it up yourself: Frontrunner Product Code KRTF020T

Toyota FJ Cruiser Slimline II Roof Rack Kit - by Front Runner