I live in an area that has similar weather to chicago. I am looking to buy the motordyne spacer. Do I HAVE to get the ISO thermal spacer (i don't drive the Z when it snows or when it is super cold)? Will the regular spacer do? Just need some quick input. I looked at alot of threads and didn't get a clear answer (i bet i missed the one that has a crystal clear answer and someone will give me the link )

 

no you dont have to get it