Originally Posted by esfourteen

the evc-s does work well, it's just confusing to setup if you don't understand the variables being changed, and most don't because the manual is confusing as hell. After owning one for awhile I eventually figured out how to dial them in well, it's actually very simple to use.

The go fast bits is a great controller that has very good closes loop correction and supports 6 boost maps and sensor calibration. Only thing I don't like about it is you have to run a vacuum source into the cabin (no remote sensor)