Well, I received the Powerstop brake kit of rotors and pads, and they are all on now. First, it was a pretty simple swap out as my truck is fairly new, and we therefore encountered few rusty and sticking parts. The entire job from beginning to end was 2 1/2 hours. The first wheel took the longest because we (my son and I) didn’t know what we were doing, but after that things moved right along. I am prone to believe what the last two posters mentioned about the lack of advantage in drilled and slotted rotors. I’ve read the engineering reports that question their advantage but—I did read the before and after comparison in Trailer Life, and they showed a distinct improvement over stock with the Powerstop mod. Now maybe it’s purely psychological, but I am convinced the truck stops more solidly and has a more even feel when I’m pushing the pedal. Before I always felt like I had to keep pushing harder as I was slowing down to come to a complete stop. Now it seems to grab better. It brakes more like a regular car and has lost that sensation that I’m in a truck that weighs more than my brakes are designed for. Before I broke them in following Powerstop’s directions, the brakes didn’t grab hardly at all. I was surprised how much better and how quickly they changed during the break-in stops. Anyway, I have no hardcore data to prove I’ve improved my braking, and I was completely prepared to be disappointed. But, to the contrary, I feel relieved that my time and money have been well spent after all. I won’t be able to tow for a while, but I’ll be driving the truck solo for the next week and will be paying close attention to whether the improvement is real and lasting.

 

Its good you're happy however you could have achieved the same results with quality brake pads. Keep on eye on the rotors since drilled rotors are more prone to cracking.

 

Agreed, its good you are happy with the purchase and you have achieved better braking.
I definitely do believe you saw an improvement, the improvement realized will be directly related to a higher friction pad compound than stock.

The fact that at tthe same time drlled rotors were added will not be a contributing factor to any increased brake feel performance (as I posted above they are actually more of a detriment).
Slots do have a potential benefit of assisting with pad outgassing without the downside of the holes.

Drilled AND slotted rotors is 100% marketing hooey. There is absolutely no need for both since they were both done to combat the same issue but they do look cooler in the sales photos.

 

How many miles on it? Until I got around 5k on my 19` my 03' Excursion stopped far better.

 

Well, some people wanted my feedback, and it’s the second day and a chance to do more real stop and go—but still solo. There’s a marked improvement over stock. I’m not disputing any criticism of drilled and slotted (although Brembo says it will definitely help in wet stops), but whether it’s entirely due to pads or not, there is a noticeably better bite. Entirely noise free, and with the new pads it will be dust free as well. I was totally prepared for disappointment, especially since right after I ordered I read all the opinions of the engineers critical of drilled and slotted rotors. But I’m not disappointed at all, although it may be entirely true that I could have achieved the same results with just pads and therefore cheaper. But I have a virtually brand new set of backup rotors and pads (only 4000 miles of gentle braking), and when I pull my 16000 lbs trailer down a long 6% or 9% grade (Colorado’s Slumgullion Pass) and roast my rotors by not paying attention, I’ll be in as good a shape as when I bought the truck. So I’m very pleased.