I had a set of these as well on my Type R, Ossie, they really work and make a huge difference, and will defo be looking for another set in due course.
Just a note re the fitting, they should have clips to secure them to the rain gutter on the car, but the set I had was short of the "rivits" that secure the clipos to the wind deflector, I used only "super strong" automotive double sided tape to secure mine, ran the car for a year like that before selling it and they were still as secure when I sold the car as they were when I fitted them.
Here is a link to the fitting of mine, from the post on Ossie in Cars section. Just scroll down the page and also the following page.
viewtopic.php?f=14&t=46317&start=90