STillen pulley's
 

I'm looking into buying a set of stillen pulleys and was wondering who's running them, and if so are you running the standard pulley or an under drive pulley. Also is there a noticeable gain with the pulley

Big waist of money on our engines.

i have also heard they are a waist of mony...somebody on driver said he regretted getting them

I've had lightweight/underdrive pulleys on several former vehicles. All of them gained in responsiveness and fuel economy instantly with them. If you're picky about how your car drives and you notice things like low pressure in a tire because of how it alters the way the car feels, then you'll like them. If you don't notice a difference with three people and a trunk full of groceries, then they're a waste of money and you shouldn't get them.

pullies are a waste of time and will damage your engine in the long run, this topic has been covered numerous times