aight this sounds really stupid. and im sorry if someone ahs already posted but i searched. REALLY HARD, and i couldnt find anything.



what exaclty is a plenum spacer ? and what does it do

 

it goes between the upper and lower plenum, adds about 10-15hp, a good mod imo

 

Is it reliable? I mean...will it cost alot of problem or trouble in the longrun? I know they ain't too expensive, and i heard alot of good things about them

 

yeah its reliable...i kind of wish they should have been standard on the g's. The only trouble i had in the long run with my spacer is the amount of gas i wasted revving my engine.haha

 

it raises the upper plenum it allow more volume and better air flow in the plenum/intake manifold. Its actually a very simple and basic mod.

 

Maybe this will explain it.

http://www.motordyneengineering.com/

 

^^search harder

and the motordyne website is a good place to start as well

 

Great mod. Cheap and effective. Only problem is that it may void your warranty.

 

^^ive never heard of people having warranty issues with the spacer..

mods infiniti mechanics wont even notice its there, especially if you have the 5/16" with the engine cover still on..

dealer cant void your warranty until they prove that mod caused the problem

 

Dealerships will find any reason to not cover an issue. I'm not talking about covering warranty issues on axles, suspension, or any misc. issue not related. But if you have any problems that are possibly related to the motor, it can become an issue.

 

in that case..remove the spacer..

 

thanks. are they hard to install?

 

yeah so i was reading up on them. and your not supposed to use ISO THERMAL PLENUM SPACER when it snows? your supposed to get the copper ones?


alsoo.. does the engine look stock with the ISO THERMAL PLENUM SPACER 1/2

 

it will still look stock but the cover will not fit over it...i have a CF cover and it barely fits over my 5/16

 

1/2" spacer = no stock engine cover