Got a turbosmart dual stage boost controller for sale. Selling due to the fact i don't use it as a duel stage, i just leave it on high boost so i got a bleed cheap to replace it.
It uses a switch in the cabin to switch from low to high boost (not included) you can use any on/off type switch from jaycar or what i did and use an extra factory switch (hazard switch in my case) in one of the blanks most cars have on the dash for that stealth style