I am sure this has been posted somewhere before, and i did look for about 20 mins but i dont have hours to browse through 13000 post lol so I am just going to ask.

1)Will a 1/2" Iso Thermal plenum spacer fit under a g35 2003 stock hood ?

here is a link for it http://motordyneengineering.com/G35.asp
its the 4th item down.

2) and is a 1/2" Iso Thermal plenum spacer better then a 1/2" Basic Plenum spacer, and are they both easy to install by myself ?

 

1) yes...why wouldnt it? but you wont be able to use the stock engine cover...

2) it's very easy...definitely a DIY

3) yes get the iso thermal

 

Well thank you
Your my hero hehe

 

if you want..check out the manual for the spacer before you buy it...

it's available on motordyneengineering.com

 

click here:

http://motordyneengineering.com/manual.pdf

 

it will fint under the stock hood but not under the engine cover

 

the lower plenum seems like it would be a b!tch to remove...