Eh, it doesn't hurt to try, I was pretty successful with the gas tank . https://www-odi.nhtsa.dot.gov/ivoq/ There are two safety complaints already filed.
904438 and I believe the transmission failed between 80k-90k miles.
2003 Daytona/Silver RS6
Ace/Edge TC - Tozo Trans - MTM TCU - REVO/ME7 tune - Wagner IC's w/ Venair Hoses - Aux Radiator delete - Hotchkis Sways - Hawk HPS Pads - Koni Sport Struts - Scroll KO4 Turbos - Devil's Own WM - 421whp/452wtq on Mustang Dyno - http://www.audirssix.com