Is the ST rear sway bar legal?


Since you have to "Drill out the parking brake cable brackets and holes in the lower control arm with a 3/8” drill bit."
because you have to expand the holes, does that mean They violate "designs that require modification of OEM suspension parts, as can be the case with spherical bearings, are not permitted."
But it the rules also state “After market rear end links are allowed.”

or does this rule cover it “Anti-roll bar end links provided with the bars from the manufacturer are permitted”