Custom Exhaust

I hear people get custom exhaust done on their Audi's for like half the cost of what normal systems cost. Is their a downside to custom exhuast system? Also does anyone know of a site that sells Supersprint stuff in U.S

i dont know about custom stuff, but i had a thought how to buy supersprint products in the us. if i were wanting to buy a supersprint exhuast id go to the supersprint north america website (supersprintna.com). if you googled it as "supersprint" it was the fourth one from the top, or "supersprint usa" its the second and better yet "supersprint america" gets the number one spot. it just goes to show how a little searching and solves so many problems and answers so many questions.

I did sort of a custom job exaust took out the cats and made them high flow holloed out cats made stright tubing on the resonator and cut the stock muffler off and put on a remust muffler

custom is a good way to save money, but factory built usually means higher quality, better sound. of course my car cant compare to yours, but my cat back exhaust was only $325 total(2.25 piping, sport muffler)