I think that a Ram air intake would be BETTER (even though obviously at outside air temps) than a WAI at speed.
Why? Because the extra pressure would decrease losses in the intake manifold.
Kind of like this,
and pointing STRAIGHT into the air intake through one of these air filters
<-pretend its an air filter I couldnt find pictures of closed inline air filters
and STRAIGHT into the throttle valve...
I know, very theoretical to have everything STRAIGHT... but such is the case in my 350z...
??