The ST lines are the 4 piece SS kit. The ST rear brakes are 10" while the SVT are 11". That's why the rear lines are tight when using the SVT rear kit.
FR '11 FF Mod pick
FR '12 Carlisle Nifty Fifty Award/Best in Boost/Best 08-11/Finest 5 Pick
FR '13 Carlisle 1st Place Award 08-11 Focus/1st place 08-11 Focus (FR13 award)/FSWerks pick/Ford Racing pick/Finest 5 pick/Top pick in the finest 5