I have a 2000 silverado 5.3 with a vortech cold air intake and dual flowmaster exhaust. Tonight I purchased a used zex nitrous oxide system. It currently has the 125 jet in it. I'm needing to know if I need to change my spark plugs and if so what size also is there anything else that I need to install with this kit???

thanks for all help
William

 

i am running the nx kit with a 150 shot. i switched to ngk tr6 plugs.

 

is that the only modification that I need to worry about? thanks again william

 

Is this on stock fuel pump and stock injectors ?

I have a 125 shot and Im a little scared to bump up the shot...

How many times have you sprayed it ?

 

I don't know much about Zex. I would change the plugs to TR6s. Stock pump is fine but, I would change the filter just because. Remember not to squeeze it at too low RPM, above 2500.
Have fun.

 

Tr6's. "Don't spray on the platinum plugs." was advice I believed.

 

where did everyone run their lines?? I plan on taking out my jack box and mounting the bottle behind the drivers seat. Also I need to run the white wire from my zex box to the tps wire can anyone tell me which wire this is? thanks for all the help William and one more did you all just tap your jet into the plastic housing before the throttle body or did you put it in the rubber hose after the air box i believe it will have to go to the plastic but im not sure

 

well i started haing idle issues with the tr6's. removed them and in stalled tr55 v-groove plugs and she is running much better. right now it is on the stock fuel pump. hopefully in the next few days i will get my fuel ceel,pump, and reg in to run it stand alone.