try get workshop manuals for your engine type evo 1,2,3 surely have difference in ignition timings u need to get info on the valve timings then u can make your own mapping.
Hose clamp size from 2.5–3.0inch (Turbo application)
Bought several brand/type with different price range at hardware/workshop.
Unfortunately it broke after sometime around 2-3 month.
Especially at...