so my truck brakes are ok but nothing special, I have a 02 crew cab f-150 with 22's so i have lots of room for bigger better brakes, I plan on really going deep into the motor soon so I wanna be able to slow down as well. Question is what is the stock rotor size? 12" i think? and what would be good aftermarket options to look at to improve braking alot. would just going with oversize rotors and better pads help alot and if so do i have to change the calipers to accommodate the bigger rotors? or would just better rotors and brake pads help alot? would changing brake lines be worth looking into?

Thanks guys for any info