Did this a year ago and have put on a little over 10K miles. NO PROBLEMS at all.

And yes, all the pulleys are press on. What I meant before when I said I wish I would have bought the one you can swap, you press on the main part and then it allows you to bolt on different size pulleys. - Quick change pulleys. I am also running a K&N drop in filter. The cold air kits are not good for off-roading. You will suck in water, mud etc. Not worth it. The drop in works fine.

http://www.pulleyboys.com/nissanqc.html