Anyone ever do any comparisons specifically for noise differences with and without? These things seem to generate a LOT of wind noise. And I guess turbulence is a matter of degrees too because it always seems to be advertised that WT vents are made specifically to allow for having the windows down when it's raining, but because of the amount of turbulence they create, I still get a lot of water being thrown over the top of the window regardless of how far up or down it is when it's raining and I'm actually moving.
It just seems that WT's were made more to follow the form before function process, so I'd really be curious to know how the JDM's compare where noise, turbulence, and water deflection are concerned.