The car preformed great last weekend at OUSCA PPIR event. These events are so much fun, if you have not done one, you need to put it on your list of things to do!
You will get more then -2.5. Depends on how low the car is, but -3-3.5 is normal with the Vorslag plates. You will need to enlarge the opening at the top of the strut tower for maximum camber.
Vorshlag Camber plates for OE style springs are on our site and available!
http://shopdusolddesigns.com/products/vorshlag-s550-2015-up-mustang-camber-caster-plates-oem-perches
Went pretty well. I had to run in intermediate group because it was my first event with Edge Addicts, so there was a bunch of traffic. Never got a clean run but managed a 2:36 on my Aim SOLO DL with a pass. Going to have to work out a plan for the Optima event because the Rival S were starting...
The nGauge will display 4 pids at once of your choice. You can set it to show the obd2 data you want. It is also a tuner and allows you to change tunes 93, e85, race gas, or whatever tunes you have loaded. Not to mention you can datalog!