Yep, just going to suck it up and take the cost. Shame as the injectors are only 4 months old.
s2052xxx:
"We only sell matched sets, and within each set the dynamic flow rate (slope) will vary no more than +/- 1%, and the dead time (offset) will vary no more than +/- 20 microseconds which is equivalent to +/- 1% at a pulsewidth of 2 milliseconds."
Injector Dynamics " ID1000cc Injectors suit WRX 08-11 - Pro Speed Racing