Which plenum spacer are you guys suggest?
And is original z-tube and polished z-tube are exactly same but polished?

And can bodyshops install the all 12 ground wires?
Are there any great body shop in NY?

I need you guys opinions. Thanks to you guys!

 

https://g35driver.com/forums/showthr...plenum+spacers
https://g35driver.com/forums/showthr...plenum+spacers
https://g35driver.com/forums/showthr...plenum+spacers

Try those for the spacer

 

So, which DM spacer should I get?
5/16 or 1/2??
And what is good to get iso thermal instead of basic one?

 

id say go with the 5/16 most people have it and will say that the 1/2 is mainly for if your tracking your car. they are both about equal in gains, its just a personal preferance. and yes get the iso thermal

 

5/16" plenum spacer

fvck the polised ztube

body shops generally dont do that kind of work....

 

imo, go 5/16th unless you track like StreetChase says. 1/2" only gives something like 1-3hp more at the very top end of rpm. 5/16" gives a little more tq across the board.

iso thermal...yes. Reduces plenum heat soak.

Strong opinion on that polished z-tube Hero. They both function the same. I personally don't like the dull, boring looking black Z-tube. I have polished for that little added eye candy. Each to their own...

 

5/16 + MREV and your doing something. check out my comments here
spacer by itself is okay but....
http://www.6mt.net/forum/showthread.php?t=20722

 

If you select the 1/2" spacer you'll lose the engine cover....won't fit. I didn't
really care because I didn't like it anyway. Body shops are not the ones to
install the wiring kit......with the exception of two wires it's easy to install
just follow the instructions and the various pictures shown on this site.
I have nothing chrome under my hood so a chrome Z tube isn't to my taste!
Everything under my hood is either polished, black or painted twilight blue.