which is better i want to buy a plenum spacer.. Is the iso thermal better?
please let me know and is it easy to instal? will i have to tune it or no?

 

Use the search function and check the manufacture's respective websites.

 

does it get really cold where you live?

 

I live in atlanta GA.
so its hot in summers and get cool in the winter?

 

Go Iso thermal. Here is a link to help with install.

 

Go with the 5/16" MotorDyne spacer ISO copper, that reduces heat to the plenum. Our G35s love there intakes cool as possible, this is the best possible way to achieve that.... No tune necessary and it's easy to install, only takes an hour.
Gary

 

where can we get that white washer thing that connects to the top plenum because of the spacer? I am missing one.

 

does it really help with gas milage?
can you you feel the difference in power with it?

 

I live in florida would i really need the iso thermal or copper??

 

In fl iso thermal or regular space would b fine

 

I live in California and yes, you should use the ISO Copper since it allows the plenum to run cooler. No, you don't need it unless you care about how your G runs....your choice!
Gary

 

In other words the iso thermal is better then just the regular one right?
Just want to make sure i dont get something i dont need. Thanks for all replys

 

+1 for motordyne 5/16 isothermal!!

 

Yes, this should clarify..

stock < 5/16 spacer < isothermal spacer < copper isothermal spacer < 1/2 spacer

... Hope that helps.

 

thanks is $185 brand new good deal for the isothermal i just ordered it...