All I gotta say is do your research before you do anything. There's a lot of info on here on the right way to do stuff. Just make sure you know what your doing.
Right it'll probably be a year or so before i do anything major to the engine, but january is the Mufflers for sure and some newer tips.
I happened to see this by the way and i planned on doing mines very similar
the rim size is just perfect
1998 Pontiac Grand Prix GT
1998 Pontiac Grand Prix GTP
2008 Buick Lacrosse Super