Mods?

Hey guys and gals. I just traded in my 02 Mustang GT for an Impala SS indy and was wonderring if any of you all know of any mods for these cars. I noticed they sell some SLP headers and o/r pipes for it but I was looking along the lines of induction. Has anyone on here ported and polished their heads, if so how much did you pick up. I know it doesn't sound like a great trade but the it's a long story and after I rebuilt the 02 Pony engine I had enough with that car. I had fun with it blown for a while raping just about any car I ran into but it was a never ending money pit and my kids are getting too big for the back seat so I figured the Imp SS was a decent compromise, a four door grocery getter with a little pep but 15.8 in the 1/4" isn't gonna do it for me. not after running 12.6's with the Mustang. Any help would be appreciated.