-31 is the end of the part number on a garret actuator same goes with a -34. -31 will do the job easy for what you want. aren't the light greens like stage 2 upgrade sort of thing? i dont think anyone bothers with them anymore. 803's(dark greens) are good for 330bhp or a lot of people are using siemens 55lb black injectors to replace dark greens but i don't know if its a straight swap between these and the bosch items