mark,
Not only is that thing expensive, its probably
not an effective vortex generator. I like how they used the words "vortex style". The dimensions of the fins appear to be too large and they're curiously mounted parallel to one another.
The vortex generator(aka:VG) fins of the Mitsubishi Lancer EVO MR are smaller(20mm high), thinner, and are mounted at specified angles. Like this:
Take notice how the inner delta fins are angled inwards @ ~15deg and the angles become incrementally smaller on the the outer fins. Mitsubishi's engineers did extensive wind tunnel testing to optimize the fin shape & positions for the MR. And they're so proud of their work, they decided to release their results to the public:
www.mitsubishi-motors.com/corporate/about_us/technology/review/e/pdf/2004/16E_03.pdf
Now, here's another option that's
definitely more cost effective(~$20US), potentially more functional, and still maintains the look you're going for:
http://www.vortekz.com
Here they are on my wagon:
The folks at "Vortekz" apparently based their VG design on Mitsubishi's research. The plastic fins are well made and attach very securely to the vehicle surface. Templates & detailed instructions are included for mounting the fins at the specified angles.
Also worth mentioning...don't expect too much from VGs if you're putting them on a 'two box' vehicle, like your Nissan. I've installed Vortekz VGs on 3 different wagons/minivans so far. The best thing that can be said about them is that they seem to provide a feeling of increased stability @ highway speeds. Although, my friend also claims that they help keep the rear window clean on his Audi A6 Avant (probably due to VGs directing air down the sloped rear window angle of that car). My father is still testing the recently installed Vortekz fins on his Mazda5, but none of the 3 vehicles have yielded an increase in FE from the VGs alone.
Cheers!
SL8Brick
Linear Mode
