Ok I've already read about this but just to make sure I needed to expertise of the board here.

It's about the whole MREV and spacer deal. I'm driving an 03 AT coupe and I am aware that I do not have the rev-up engine. Now for the main question: what is the best combo available when it comes to spacer/mrev products? I'm thinking it's the MREV/spacer combo because I've heard it now runs on non rev-ups but will need a tune because of running lean. Am I right or is there something I missed? Also is there a diff. in quality between the spacers? I live in Chicago so what would be the best one?

If I am correct I will be getting the MREV/Iso thermal spacer in addition to a few other things along with a tune in the spring but I just wanted to make sure first.

PS - I will delete this thread once I am sure of everything, just don't want to make a mistake

 

get copper iso thermal spacer, if you want the mrev as well get the 5/16 spacer, but you most likely will need a tune, best bet get spacer now, if you plan to do a few other mods like intake exhaust etc. do those after then mrev and tune last to take full advantage of all of them combined....just my opinion