Was going back and forth on going with a stoptech or wilwood BBK. reached out to my parts contacts and had them verify if they were compatible with stock rotors since the sizes specified in the kits were stock rotor sizes. They said they were not compatible.

I really like the idea of having more rotor choices and since those are not 2-piece and the OEM rotors have many more choices I am sticking with OEM brake calipers.

With that said I will be doing a brake upgrade as I think that the stock brakes are just at their limit with ~600-700lbs static added weight combined with lots of mountain driving. I ordered the parts to revamp the brake system and hopefully it will feel better with knowing I can replace with OEM parts in a pinch.

parts list:
EBC Yellow pads
Stoptech slotted rotors
Stoptech stainless lines(I already have stainless 3rd member extended lines for my etxended travel rear)
Motul 5.1 fluid to do a full flush
Permatex extreme brake parts lube

Will make sure to bed the pads properly and hopefully they do better.

I haven't had this problem yet anyway. But I agree engine braking is essential, on a long downhill never be in 5th gear, put it in 4th and lower the speed. Something else I always do is turn on the AC and turn on the headlights to provide a little bit more engine resistance from the alternator. I sometimes tow a pop-up trailer and I never had an issue with this strategy.