If you require hosting to have SecFilterEngine Off or SecFilterScanPOST Off, do not worry.
Those rules apply to Apache 1.x, but CentrioHost uses Apache 2.x.
We can't completely disable mod_sec, but we can find the rules blocking your scripts (403 error) and disable those rules. Thus, we can meet these requirements.
Simply contact CentrioHost via phone or live chat to report mod security blockage.