So I have heard the if you are going to use Nos you should go to some colder plug. First, is this a must? and if it is and I was going to get the NA 300zx plugs do they need to be gapped if I put them in my car(96 5-speed)? I have an intake, y-pipe and GReddy catback. Lastly, with colder plugs well this effect the performace of the car when I'm not using the Nos.

 

to the first part....YES...about performance w/colder plugs off the bottle.....don't know

 

^^^^

 

the plugs will NOT hurt anything when you're off the bottle, if you drive like an old granny they might get some carbon deposits on them, but that's nothing that a good WOT run can't fix

 

they might foul a bit faster.