http://www.g35parts.com/9083/osc/pro...roducts_id=292

I didn't realize there was an aftermarket NON-revup lower plenum. Is this comprable to the MREV2 but setup for the non-revup, anyone know?

 

the description says it all..his is the intake manifold collector from the non\"rev-up\" motor. Install this part on your rev-up motor to shift the powerband down into the lower rpms and pick up a good amount of low end and midrange power, at the expense of a few horsepower at the very top end of the powerband.

 

from the description and price, it's the stock non revup plenum. so it's the base for the mrev2.