i am wondering how i can tell if my injectors are high impedance or low and can i get injectors that would not require me to wire in a resistor box.

 

your stock injectors are saturated and do not require resistor boxes

 

more info needed really. if they are not stock injectors then you will need to look at the model number and look them up online so see whether they are saturated or peak/hold injectors. as doood said if they are saturated then you won't need a box.

 

i am wondering when i put in the bigger injectors i can order high or low impedance so my question was which one should i order to avoid having to wire in a resistor box or do you all ways have to wire one in.

 

You'll want to order saturated, high-impedence injectors.