These are a good value and did improve braking power (but not brake feel). So far I installed only the front and think that braking performance improved about 25% - for the same amount of pedal effort, Jeep stops about 25% more forcefully. I'll probably do the rears once I need to change pads. However, be aware that the machining of the caliper bracket is very inconsistent. One side was fine, the other was clearly out of spec and I had to do some serious filing of the metal to get the pads to fit. You should also file (dramel) excess paint around the bolt holes for a flush fit. The rotors and pads are generic Centric/Posiquiet - nothing special. There are no installation manuals - but you can download the Dynatrac Progrip install guide - it is the same thing. Also, on my JK right front the brake lines are on the edge of being too stretched with the caliper now being an inch further from center line of wheel. I think I'll have to free the brake line bracket and tug it 1/2" to the outside.