i got 2 s4 low impedance injectors that look brand new, there not a denso injectors, cause they don't have any of the numbers or the name on the side of the colored plastic. but they do have the # "RIN-534" on top of the plastic on one side and the # "3217" on the other side. they are red top injectors and i just wanted to see what size they were or if anyone knew what company these come from. Thanks for the help guys...

 

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i found out there autozone's brand of injector, thanks for all your help

 

I've bought injectors from Steve's Foreigh Auto Parts in Ft Worth, for my and they had similar numbers. As to if they're high/low the only way to really tell is to get a meter and put one meter lead on one pin and the other meter lead on the other pin and put the meter on OHMS. Low would be in the order of 1-2ohms and high somewhere around 10-12 ohms.