A site you can use to check if you don't have an owner's manual or want to search the forums is
http://www.sylvania.com/ConsumerProd...de/default.htm
Just select your car and it'll give you a list of which bulbs go where. It lists a 1156 for the S14 Zenki turn signal. Will probably cost about $3 for a pair of 1156LL (long life) at Kragen's and any auto parts store. No need to go to the dealer.