The biggest thing to notice is that is somewhat bigger than the ASP one but smaller than stock. I didn't have a stock one around to compare it to. My bathroom scale shows that it weighs in at around 6lbs so its not all that heavy.
I decided to switch to this one as I will be revving past 8K Rpms and would recommend the same to anyone else planning on doing the same. All except for George as he has already claimed to have the Fastest 300ZX in the Nation already without his car running. LOL George you crack me up!
Follow Ups
Here is some pics of the ASP versus Fisher Pulleys - Carlos Ramirez08:27:08 10/04/02