So I am buying MotorDyne G35 5/16" Copper Iso Thermal plenum spacer.

Are there any things I should do for preinstallation, oil change, etc?

After I install the plenum, I have read I need to reset the ECU, is this true and where would I get this done?

Thanks in advance, noob question I know

 

There is nothing to do before the installation except to make sure the car's engine is cool.
You can download the guide from here.
http://www.motordyneengineering.com/manual.htm

It's pretty detailed on what needs to be done, but you will need an extended 10mm socket.
I don't think it mentions that in the install guide.

 

Oh and u don't need to reset the ecu.
The guide says to disconnect the battery prior to install.

 

thanks irishsig

 

Now I'm confused (not unusual). That video doesn't completely match the steps/pictures of the install from myg35mods.com. On the video, they remove the lower plenum, and at the end, they cut a hose and install something there. Neither of these things are done on the myg35mods page.

http://www.myg35mods.com/tutorials/spacer/index.html

 

If you are in Socal and would be interested in installing a polished plenum at the same time, I will install the spacer for free. PM me if you are interested.

 

SxExCx - nice sneak in with the plug

BTW....Rush.. Sx does do great work....go see him...

 

I really wish you lived near me.

 

I wasnt trying to be sneeky........EVERYONE SHOULD BUY ONE OF MY POLISHED PLENUMS!!!

 

myg35mods.com is just a basic plenum spacer. The one shown in the video that bythebay did is an iso thermal spacer so they had to remove the lower plenum to install the aramid gasket and they cut the coolant line for the coolant control valve. You only have to do these extra steps if you get an iso thermal spacer.

I personally went with the copper iso thermal spacer so I won't be cutting my coolant line, just bypassing the plenum and sending the coolant through my copper throttle body heater instead. I will still have to remove my lower plenum to install the aramid gasket though. Hope that helps clear things up a bit.

 

^ It does clear it up. Thanks.

 

The hose mod you see is the coolant control valve install.
Basically you'll want to do this part of the install if you live in hotter areas during summer, like Nevada/Arizona.
It reduces heat transfer into the upper and lower plenum assembly and helps to reduce power loss as the engine bay becomes heat soaked.

 

^uh? Were you just describing two different things or were you just talking about the CCV?

 

I would reccomend getting your ECU reflashed. If you are in SoCal I would say go to Technosquare in Torrance.