Yes an mrev2 works best only with rev-up engines, also the mrev2 is a prerequisite for 5/16 spacer. OP, lots of reading for you and they are all can be found here at this forum. Once you are done with all bolt ons, tune the ecu.

I've read a lot of members here with auto that they enjoy mods like grounding kit and transgo kit.

 

The Transgo is a baller mod, completely changes the way the car drives. But it doesn't make any power, just ups the fun factor!