What kind of track? Drag strip? If so, keep the base brakes. Less rotating mass, and more than enough braking power to stop once from 120 or whatever.
Road course? Absolutely do the 14" Brembos. The 15" 6-piston Brembos are for cars and coffee....too big, too heavy!!! A 14" setup with good fluid, pads, ducting, and lines will be enough for 99.95% of track guys.
2002 C5 Z51. MCS 2WNR TT2 coilovers, 18x11 Forgestars, 315's, yada yada. Built Z06 T56. Bolt ons. Coming soon to a CAM event near you.
2013 F150 6.2L. 9mpg.