mrev2.

youll feel the plenum spacer at high rpm's

 

For a rev-up engine whats recommended? the 5/16'' or 1/2'' spacer? I spoke to motordyne and he said we dont need any ISO thermal spacer. I just forgot wich one he said

 

5/16" spacer w/ iso + mrev2

 

Thats for a rev-up 6mt?

 

Yes.

 

Thanks guys.

 

i have the 04 non-revup engine but i plan on eventually putting in a twin turbo and from searching the forum most of you guys do not recommend buying the mrev2 because there are low power gains but since i plan on adding a turbo will i eventually need to buy one or no....also after installing the plenum spacer do i need to do the idle ecu relearn?