Can I put after market headlights for a 06 Grand Prix in a 02 Grand Prix?
No, The '06 has a different design. You have to stick with the 1998-05 stuff.
HID bulbs are somewhat expensive, & use AC or DC ballasts for more watts & brightness, check around online for deals. LED's are availible for everything else too.
Looking for a Used Grand Prix in your area?
CarGurus has 3,715 nationwide Grand Prix listings starting at $1,100.
Search Pontiac Grand Prix Questions
Pontiac Grand Prix Experts