I bought a 2006 silver Inifiniti G35. It has 19" wheels, navigation, black leather, etc, so I'm not looking to make many appearance/entertainment mods, other than a sub. I'm looking for any ideas for performance modifications that can be made?
FYI, I just bought it and have no intention of selling it anytime in the next 10 years. So, I really don't care about the resale value, this is just going to be a fun toy for me to play with.