Ive got the Honda bars on my Type S (pics at link below) and love them. I just leave them on the car all the time, dont really notice any drop in econnomy from other people on this forum. To fit them you need to take out the strips that run along the roof and cut them, a couple of people on here have done it and said it was a bit of a pain, I got the dealer to fit them for me as part of the deal when I bought the car
Hi
TomThumb has some great pics showing all the bits how they come off etc
Roof Rack photo's