hey at work the other day,,i was at a truckyard grabbing goodies to make a 60 series run on our dyno(engine),,,,what i came across looks like it would work,,,find a big truck,,and lookon the dashat all those switches,,,theres a few for susp height,5th wheel +stuff,,well they look like a normal toggle switch,but theyare an air switch!!!,,,the ones i grabbed have 1/4 inch air brake line withthose funny push lock connectors that let you slip the line out if you push the collar,,,,,,,,well i got a shopair regulator,and i already use that,for a controller,well i do let it go closed wastegate too,itll go like 30 psi,,and its a pain to turn the knob,,so now you could cruise at 10-20 psi,whatever ya want,then flick the switch then you need max boost,,,anyone else seen these air switches??figured its easier/cheaper than a soleniod,,,hit the truckyards yall for cheap boost controllers!!!i think i snagged one of mine from a peterbilt