??A4??
 

So, I don't own it but this girl I know has a 97 Audi A4 with the 1.8T (I think thats the size). She messed up her exhaust and needs a new cat converter. Where should I have her get a new exhuast from because all the sites I normally get my stuff from Audi prices are super $$$! also anything like brands and what not are needed too.