Hey everyone. I'm new to the forums and have a 04 IMPALA SS and just wondering a couple performance mods and a couple of sites to get parts from? Another question is what psi does the stock supercharger run at? and whats the safest psi the stock block can hold? also as for exhaust do y'all have any vids? and whats the most recommened exhaust brand and setup. thnx for all the help i really appreciate it.