As the title states, I am looking to add a plenium spacer but I mostly see people with N/A tuned doing this.

Is this good on F/I set-up?
Do all spacers require strut tower spacers?
Does the engine cover fit with a spacer?
What is the cheapest spacer that gets the job done?

Thanks for the tips!

 

Is this good on F/I set-up? Not sure.
Do all spacers require strut tower spacers? As far as I know, yes.
Does the engine cover fit with a spacer?Yes, stick with a 5/16" spacer and you'll be fine
What is the cheapest spacer that gets the job done?I have the MotorDyne 5/16" spacer and I love it. I went with the ISO thermal spacer since I drive the car year round and we get lovely winters here in Pittsburgh.

 

Cool tks, now if I can only confirm if anyone else with F/I has this. I know the turbo over stresses the plenium so I am not sure if the spacer can handle the pressure.

 

Found my awnser here http://www.motordyneengineering.com/350Z.php

General Information:

Plenum Spacers:

Instantly add 10-15 horsepower and a deeper engine note to your Z or G with a Motordyne plenum spacer. The Motordyne Plenum spacers are stealth. The 5/16" spacer is designed to work with your car's stock engine cover and strut bar. Installation is fast and easy; other than unbolting the stock collectors to switch in parts, nothing else is modified or changed. There are two sizes of plenum spacers to choose from and each offers an advantage for different applications. Both add power and a deeper growl under the hood. The 1/2" spacer typically yields 1 to 1.5 HP more than the 5/16" plenum spacer.

For turbo charged and super charged vehicles, the gains can easily exceed 17-23 HP.

 

There you go! I can vouch that the kits that they sell are very good. It is a very straightforward install and the instructions are easy to follow.