Completed a local install of the Guardian Angel in a 2007 MS3 yesterday. He was having some overboosting issues and wanted the added safety and protection. A very smooth and OEM like installation that took about 45 minutes.

Here is the unit installed in the engine bay

And here is the warning LED installed in the spare button plug beside the steering wheel. Make sure you keep an eye on this to make sure the unit is functioning every time you start the car (It flashes on for 2 seconds).