I have had this on my car ('08 135) for about 6 months perhaps? Maybe less. Sold the car and now this is what is left. $399 takes it all shipped.
-JB4 Stage III w/PNP harness and USB
-15 Ohm mod for JB4 (Not installed)
-JB3 box 10 Ohm (No wiring)
-DP v2 fix for the JB3
BTW this has the latest firmware already installed on it. Ready to go out-of-the-box.
I also have a Dell Mini 9 with a 64 gb SSD that I used to keep in the glovebox for programming and logging etc... while on the go. I will throw that in the deal for another $125 if you are interested. If you need to see pics I can post those also.