I bought the plenum used and the kinetix gasket was messed up so i had to use OEM one plus a silicon gasket (it withstands over 500°). Overall the car is pulling better and smoother. I have to go to the dragstrip to find that out though.
When i start the car i have to blip the throttle once for the car not to stall but after that it just stays about 600rpm idle and it is steady.

Now the question is:Is this something that the ECU will take some time to get used to or there is something wrong. Keep in mind the idle is very steady and there is no needle movement. The car runs perfect after that one blip of the throttle right after startup.

 

I had the same problem after installing my mrev

After I performed the "Idle Air Volume Learning (Throttle Position Learning)" that fixed the problem. Give that a try... you should be able to find the instructions on how to do that somewhere on the board, but if you cant find it, download the motordyne instruction manual, its on the second to last page

http://motordyneengineering.com/manual.pdf

Just curious, did you disconnect the battery when you installed your plenum? My guess is that you didn't disconnect it....

 

I did disconnect the battery and left it like that for 10 hours till the silicone dried.
Thanks a lot for the page, Im gonna give it a try tomarrow.