i am swapping my pulley on my cobra sat. i know i need to get a pulley puller to get it off .but is there any tool i need to have it pressed on if not what is the best way to get it on

 

Most pullers if bought brand new come with a tool to press the new pulley back on.

 

Be VERY careful with the pulling the pulley off.. You can easily damage the snout of the blower - making it need a rebuild.

I have heard a lot of good things about the billetflow pulley puller... but you have to be VERY VERY careful - cannot stress that enough.

 

these guys have summed it up pretty well.