Just sticking a cone filter in the engine bay open to the hot air isnt a good idea for an intake.
It may look cool, but its trading low end for high end.
(I dont care about peak power numbers, I want alot of area under the curve.)
Stock intake draws cold air from the fenderwell, so you just need to open the flow capability of the stock intake up.
I did a comparison of a true cold air intake (filter outside the engine bay) versus a short ram intake (cone filter in engine bay with heatshield) versus my intake setup.
Its under one of the previous posts about my setup.