Redline SI-1 is the one I use. It's the only one I actually can notice a change in my car. My exhaust (catless turboback) pops on almost all upshifts and downshifts regularly, but after adding this cleaner to my a tank, i get no fireball popping sounds anymore until I finish the tank.
No idea if its doing good or bad stuff if my car stops popping, but its the only fuel injector out of the bunch I tried that actually does something.