Do I need one with this kit, what is the NX part number if I do. Where does it go and is it an easy install? Any downfalls to running a filter? How often do we need to replace them?

 

No down falls.

Run it anywhere after the bottle, I have mine attached to the bottle.

Replacement?? Not sure evry bottle I look at mine but I havent been through many bottles yet.

 

The NXL kit has a Filter in the nitrous inlet fitting.It doesnt hurt to upgrade to a large inline filter like the ones we keep instock.However the standerd kits do have a filter screen on the inlet fitting for the solenoid.
Dave