I live in Washington.. rains a lot.. snows once or twice a year.. i dont know which one is best for my 06 g35 6mt.. should i get the 5/16 iso thermal plenum spacer? or the 1/2 iso thermal spaceR? also does copper matter? thankss

 

just get it with the copper.

 

which one has the most gains? also i do want to keep my engine cover

 

I also live in Washington and I just installed me 5/16 w/ iso thermal. Most gains is the 1/2 inch but you cant keep your engine cover but w/ the 5/16 you can. Gains are barely noticable between the two i hear.

 

search it

so many threads on this....

i wouldnt take the chance..might as well get the copper

 

yeah def get the copper if so, its made for a reason

 

just noticed youre an 06 6mt

mrev2 with 5/16 spacer

this will let you keep the engine cover too

 

go to motordyne and read.. if it snows at all you def. want the copper iso thermal.. thats what i got.. take ur time puttin it on . you will love the diff..
5/16 spacer is you want to keep your top. i felt the same way..

Hey its better to spend a little bit more money and to feel safe about what you are putting on your $40000 car...... so go with the copper iso thermal 5/16 spacer..

well good luck

 

^^you mean copper iso thermal (for snow)

 

well it snows once a year in washington.. is copper really needed?? i got a budget.. im a poor college student.. every penny counts!

 

+++1 poor college student here...but search the forum for sure there be an answer i say 5/16...the 1/2 will gain about 1 to 3 extra hp from what i read on MD

 

be safe..do it right the first time. get the copper iso thermal. you dont wanna take any chances..

 

alrite.. thanks a lot hero.. i will get the copper one.

 

^^if you really really dont wanna spend the extra money for the copper (which i highly suggest you do) then since you say it only snows once or twice a year then you can just not drive the g on those days or something..lol

 

Could someone explain what the copper vs iso thermal would do in the snow? And what is the point of the coolant shutoff valve that comes with the spacer/isothermal package? Thanks.