Wow, was not too impressed with carparts.com. Definitely a lot of info, but not very application specific. I searched for headers under '99 Contour SE 2.0L and I got full length headers for a 429. Not too useful there. However,
www.imp-auto.com and
www.hksusa.com look like they might be very useful. Particulary hksusa.com. Looks like they have everything one would need for a turbo kit, from exhaust, fuel, ignition, and intercoolers. Looks like I might be shopping there!