You won't be able to just swap them, as your software isn't mapped for them, light blues IIRC are 4x4, the only reason for wanting to change injectors is if your current ones are in capable of fuelling for the engines needs although arguably a better spray pattern may count to a small degree, if this were the case I would be going straight for Siemens 55LB.

Overfuelling is as bad as underfuelling!

Martin