air intake

i have a 2004 impala ss and i want to put a cold air intake and a smaller s/c pulley on it and i would like to know if there is any body in alabama that can do it or could i do it myself and what size pulley do i need not blow the motor

You already have a good forced on the road cold air intake.
Be better to leave it as is.
Why do you want to add a smaller pulley?
And what is a s/c pulley?
What engine?

it's a 3.8L supercharged v-6 the reason i want to put the cold air intake on and a smaller pulley on the supercharger so i could get more horse power do you think it is a good idea or do you know of something else to give me more power