i got gm stage 2 insallted last week and they reflashed the co,puter for me...should i be running colder plugs

 

yes and they should be ngk. I am sure some people on here will chime in. I don't have my book in front of me rght now for the part #.. Peace

 

yep.

 

If you are GM stage 2 only, with no other mods, you do not need to run colder plugs.

With GM stage 2, exhaust and intake you don't have to run colder plugs. If you drop down to a smaller pulley than the GM stage 2 pulley then it would definately be a good idea.

 

agreed .... the factory plugs are fine for the GM Stage Kits.