Turbo Part Number

[FrankA6]

OK! , i called the audi dealership and they told me the part number for my 2004 S-Line A6 2.7T turbo's is 078 145 701TX, and the turbos i want to buy that are used are 078 145 7045, is this a problem, or can any year 2.7T use any A6 K03, or can anyone tell me if there is a difference from a 2001 A6 turbo to a 2004 A6 turbo, please help! thanks

[oc-drop]

pretty sure they're different at least in 04, might be 02-03 not positive though

[FrankA6]

could they be used tho?