From the picture can anyone tell me if the stock s4 or s5 injector connectors will fit these injectors?

They look very close...

Siemens Deka Fuel Injectors
2.8 Ohms Low Impedance
865cc/min
P/N 3105

 

looks like the s4 connectors will. the s5 are round and will not fit. if anything you might need to file down the notch in the clip but they will fit.

 

So I have an S5 and want to run these injectors, I was just going to buy the regular harness, but found these via another thread here.
They are on this site: http://www.fiveomotorsport.com/Injector_CONNECT.asp
Description: NipponDenso Male to EV1 Female $11.25 Each

The NipponDenso is supposed to be the S5 where the EV1 is the S4 connector, then I just need to splice in the resistor (any idea on the specific one I need also). Thanks everyone.

BTW: I'll probably be sending you the money after I get off work kleetuz.