who makes a dual stage EBC?

i have the HKS EVC EZ and i can have 2 boost settings but it will not let me change the settings while the car is under load. if it will help with traction i'd consider changing boost controllers......


Cougar is no more, parts for sale. Built escape 3.0 w/ 8.5:1 pistons, PnP heads, ovalport/mazda6 cams, SVT manifolds, the works entire car for sale PM me if you want a part!!!