Myself and 3 other guys in perth have the blitz sbc type s, its got 5 boost settings as opposed to only 2 on the profec, it reads boost in bar so it acts like a boost gauge, unlike the profec. Quite simple to fit and setup, holds my boost at 12.5psi very well except when the valve timing kicks in and it drops to 9psi, but thats something to do with my ecu.