k-huevo - Don't worry about going off topic as it's all good information to digest

I'm loving getting back into the modifying again & a lot of the modifications are similar to the Impreza (if you ignore the SC/Turbo difference) as they are both forced induction.
Not sure i'll go full decat this time as I always hated getting the MOT done at my "friendly" garage about 50 miles away

. Was a right pain. I'm thinking cat-back & then eventually sports cat just for the convenience.
Would a 15% reduction require the use of larger injectors then? Would a remap push them too far to keep up with the additional air. Would rather be safe than sorry & don't really want my injectors running at 95% when there is no need. Funnily enough i've a set of 380's in the shed but they're from my old Impreza so i'm sure they won't fit
MAFFA