im thinkin about buyin a 05 s4 red i took a look at it today and i fell in love with it havent drivin it yet tho. its kinda tuff cause i never been around one before and the engine was sweet but kinda had a slite high sound pitch. woundering if anyone has any idea about what im talking about.

 

if you're talking about hearing the internals, that's normal...lifter click and valve noise is completely normal for audis and a lot of other german auto makers