Ya, they have a pro street kit for the S13 but they don't make a die hard kit as of yet. They seems really good quality and I've only heard good things. I'm expecting a big difference when I finish fitting the kit.
I argee, their service is good. When I mailed the guy about the problem with the size of the disk yesterday. By the end og the day he had already organized for the new smaller disks to be sent down. When I told him I'd managed to get the bigger calipers he had to phone and cancel the delivery of the smaller disk, coz they were already on their way ๐ฎ Thats the kind of service i like 8)