As a proud owner of that kit for several years, I've got some side notes on what it really takes to get that kit to work well
1. When I did the first install, I used a high temp single ply hose. The problem with that is that the coils that hold the hose into shape inside are exposed and if you do an extreme angle, like doing a u turn, or turning at full lock, those coils end up popping off the bead, hose loses it's shape and rubs through. Do yourself a favor, and buy regular temp dual ply hose. Costs about 65 dollars for 12 feet, is good for 350 F, which has never been a problem for me, and coils don't move around, so hose lasts longer
2. Even with the smartest way of routing that hose it will still wear out. I had to move it out of the way, had to shorten the sway bar end links by about an inch, and I was still changing hose every 4-6 months completely
3. After a while of highway cruising street pads tend to cool down a bit too much, which results in severely reduced braking capability. Something I felt immediately when I removed the hoses.
Currently, I'm not running the kit anymore. A few months ago I damaged the hose with 3 days before event, so I had no choice but to remove it. That weekend I found that Brembo kit with race pad does not need any help from the ducts. Back when I was running HP+ and the Cobra kit, it did work very well for me. Point of the story is, if you can afford to put in a real race pad, and you are not lazy like I was to change it at the track, go with that option. It will be cheaper and and more effective. If you wanna show off your cool race car gear that does not do anything until 50mph, get the ducts.