Got this put on last week. The Pulley weighs 1.19 lbs and is of very high quality. I got the one anondized in flat black for his special deal of $105 shipped. Comparing that to the full set (which weighs less by 2 lbs or so), the price is awesome. It's not an underdrive pulley, so you don't have to worry about the issues of having an ICE'd out car or any other worries of AC or PS. I was told by MrJosh43 that it should fit all EJ25 engines, if not just send it back for a refund. Fit perfectly on my MY00 RS and even has the slit on the edge of the pulley in case of timing belt replacement/cams installation/valve lash setting.
Ride: It may be the new belts I put in, but the car runs a lot smoother. The pull is very noticable on the car, especially down below @ 1000 rpm where the car pulls you back. G-Tech said I went from 122hp before to 130hp after. Three thumbs up; one for the price, one for the great customer service, and one for the build quality.