AEM POWER PULLEY KIT for my Civic.
 

I am thinking about getting it for my civic, but I dont know exactly what it will do...performance wise. Any increases? Any info would help.

It will help your low end a little bit. Not a big gain, but everything helps.

go with i/h/e first....if you have those, get a clutch. if you have an auto, get an FPR and an ignition.
power pulleys arent worth the money imo unless yer dying to spend money and dont have anything else to buy.