Well, it kinda depends on what you mean about custom dash.
VibrantPerformance makes a universal custom dash, but you'll have to get parts from an Pontiac Grand Prix dash to fill in the vents and whatnot (dash bashed off the Grand Prix). If you're looking to just make changes to your original dash,
BuddyClub2 will take your dash give it a CF overlay for any component of your car, or just make you a FG one. Best help i can give ya.