ah yeah i remember. With the clean r32 GTR.
SARD's were the cheapest on ebay at the time, reputable brand and it was a direct replacement for GTR. (i had gtr stock injectors wired in which failed, so easier to replace with sard gtr's)
It's also good to replace the injector plugs as they will no doubt be coroded/rusted. Mine were green, no idea how any voltage went through it...
I failed E*P*A because the inspector told me my injectors should be red and not purple, so whatever he gets make sure to paint them to stock colour. However, he wont pass EPA with a powerfc whereas with a nistune and tuned to pass emissions will