I have a wet kit and a purge valve that were on the car for a couple seasons and had probably 5-7 bottles through them. I got them form HSW.

Should I rebuild them? How do I know if they are good still?

 

They should be fine with only 5-7 passes

 

no, 5-7 bottles.

 

Yeah that's what I meant sorry lol

 

How old are the solenoids?

 

You should be fine on the nitrous side because the piston material is Teflon but i would take it apart and inspect it for trash.

The fuel solenoid will probably be alright as well but again i would take it apart and check for cracks in the piston material and trash as well.

If your not sure if the pistons are good feel free to pm me some pics.

Trey

 

Here is a good step-by-step walk through of rebuilding and how to diagnose if anything needs changing: http://nitrousoutlet.com/media/techd...aintenance.pdf