So Driven Innovations is the SMIM of choice for a lot of evo guys now. Well this guy that was deep into engine design for high-end race cars got involved, and started modifying stock manifolds to yield similar results. V2 of the manifold was just tested, and the results are astonishing.
Here is the dyno sheet (the solid line is the DI intake, the dotted is the Indy):
Freaking INSANE when you consider that the DI manifold was done with a 3" TB and the Indy mani was done with a ported stock TB (65mm, 2.5"). These numbers are 40+whp over what a stock intake manifold would produce.
More info here:
http://forums.evolutionm.net/showthread.php?t=352290
It would be *really* interesting to see what one of these would do on a maxed out IX or Evo Green car...
Threaded Mode