ctamotorsports is selling xenon bulbs for 10$ so I'm thinking of buying some since it sounds like a great deal. So I need to know if I have a stock light assembly, can I still use xenon bulbs? If so, what bulb number should I ask for if I drive a 97 a4?

 

http://www.sylvania.com/ConsumerProd...placementGuide

 

Ok but can I use xenon bulbs on a stock assembly? The list on that site has doesn't list any xenon bulbs for my car.

 

those xenon bulbs are about worthless. they put some trace of xenon in a normal halogen bulb to call it that. its not the xenons that your thinking of. If you want to go the cheeper way. try and find some bulbs with about 70 to 80watts and a slight color. not that they say xenon. pandas link is also good.