All Nissan Side feed injectors are high impedence

The GTIR 444cc injectors are low impedence

91-99 USDM SR20DE = 259 cc side feed
00-02 USDM SR20DE RR = top feed

U12, U13, W10 and W11 SR20DET = 370 cc side feed
Pulsar GTIR SR20DET = 444 cc top feed

S13 and S14 RWD SR20DET =370 cc side feed
S15 RWD SR20DET = 444 cc side feed

SR20VET = 444cc top feed
SR20VE 20V = 350cc top feed

Side Feed Injectors

23 cc = 16 WHP
46 cc = 31 WHP
93 cc = 63 WHP
139 cc = 94 WHP
185 cc = 125 WHP * Pink GA16
231 cc = 156 WHP
259 cc = 175 WHP * Red SR20DE
278 cc = 187 WHP
324 cc = 218 WHP
333 cc = 226 WHP * Grey SR20VE
---------------------------------------------333 cc @ 4 bar = 261 WHP
370 cc = 250 WHP * Purple SR20DET
---------------------------------------------370 cc @ 4 bar = 290 WHP
416 cc = 281 WHP
444 cc = 299 WHP * Brick Brown SR20DET ( S15 )
---------------------------------------------444 cc @ 4 bar = 345 WHP
462 cc = 312 WHP
509 cc = 342 WHP
555 cc = 373 WHP * Yellow
---------------------------------------------555 cc @ 4 bar = 423 WHP
601 cc = 405 WHP * Yellow Tomei
---------------------------------------------601 cc @ 4 bar = 457 WHP
647 cc = 436 WHP
692 cc = 468 WHP
740 cc = 500 WHP * Red
---------------------------------------------740 cc @ 4 bar = 580 WHP
850 cc = 570 WHP SARD
---------------------------------------------850 cc @ 4 bar = 660 WHP

Nissan Top Feed Injectors

350cc = 275 WHP * Green SR20VE 20V P12
444cc = 299 WHP * Yellow RNN14 GTIR
444cc = 299 WHP * Yellow SR20VET