I can't recall if it was posted on this forum or not, but I read a post where an owner noticed that the vehicle faults to super firmness temporarily by not reconnecting one of the shock connectors. It displays a fault message on the cluster. He installed a cutout switch to give him on the go access to real sport suspension. So you know Kia could definitely firm up sport mode to some degree, but from the info in this thread about recoil rates, the will still be physical limitations to correct the squirliness.
This brings to question if it is possible to replace the struts/ shocks without having continuous error messages on gt1+.
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