no s4 mirrors lol its an a4 not n s4.... fmic i got off ebay it was alittle pain n the butt to fit but it works. there is one where it looks like it be easyer to fit on ebay i wish i bought that one but the one i bought is fine does the same as all the other ones.... i wanna dyno it maybe at waterfest not sure yet bc they say its 250 hp n 270 tq with a k04 but idk wat u think?