Short review here but just wanted to let other buyers know that these discs and pads feel noticeably better than the original Nissan equipment. My experience with my Frontier '04 is that the braking system is not suitable for a truck. I bought a new car with 125,000 km on the odometer. My office is at the bottom of a 3 mile 7% grade, and I don't normally use the engine for braking (much cheaper to replace the brakes than to overhaul the engine). I replaced the stock pads with a NAPA set at about 35,000 miles because the stock brakes wear so much when hot. The NAPA pads were better, but not by much. The PowerStop kit fits perfectly, and while I've noticed that they fade a bit with enough abuse, it's not as bad as it used to be. The rotors and pads fit like stock and wUnderCarParts LLC responded to my question very quickly. The amount of brake dust on the wheel has been significantly reduced. And the price was very reasonable. The only downside is that they don't come with the metal spacers that sit behind the caliper side pad. I used original.