yeah i had the same prob as soon as i drove my car out the dealers lot n they never help me i also change both cats at $375.00 each. cus the car is a 3.0 its two cats also did some 02 sensors n i still got the check engine lite on after spending over $2000.00 i said **** it i can live wit the check engine lite on lol but now tht i did all this work done to the car now i have the most annoying air leak comin front between the cat n engine or idk cus i did my exhaust cat back "2.25 n all is welded underneath so i guest now im goin to have to weld cat to engine to get rid of the air leak..this air leak really make my car sound like crap i really hate it so good luck on urs if i would of known all this i would of toke it straight to dealer from first place... :]

 

that last guy just sounds like he works at audi an is pulling my leg but i am heading to get the cats put on today. i am hoping all goes well an i come back home with some money in my pocket still.

 

not at all i dnt really go to the dealer unless its a recall lmao i never had a major prob wit my b6 besides this check engine light w/cat code this has been like my worst nightmare ever since i bought the car...even after i change the cats n the 02 sensors i still get this p0431 code i wish some one can help me out wit this but for now its just goin to stay th way it is..but just make sure the shop u go give u warranty