PA Headlight Laws
 

I'm looking to get black projector headlights for my '98 A4 and was wondering if there were any laws I should be worried about running into? Like a required yellow turn signal or stuff like that...anybody know/know where i can find out these questions?

http://cgi.ebay.com/ebaymotors/96-97...ht_6239wt_1167 are my headlights i was looking at getting fyi