I did this change last weekend. I used a cheapo cable from Ebay and the freeware version of Ross-tech's software. I immediately noticed an increase in "perceived performance". Weather or not it actually increases power I cant tell as I don't have access to a dyno but the car is much more responsive especially at lower speeds. Surprisingly it seemsthere is also an increase in gas mileage,but I have not tracked that well enough to actually say if that is true.
The question I have is why would Audi cripple the performance of the A6 2.8 like this - is it an issue with reliability or just a marketing thing. Some other reason?

 

Yeah I did a search on this and found that no one has really talked about this so i thought i'd bring this mod over from the audi forums and help out some of the other 2.8 guys really couldn't just keep this to myself since the car does drive much better and a lot of the newbs. complain about how slow the 2.8 is. Its the cheapest and almost free (if you already have a vag) mod you can do to your car.

No, sorry the topic of recoding cars to think its an S4 or RS4 has been covered none of such nature exists. And so far the only asnwer i can come up with or i've seen is that the A6 has been detuned for grannies over the A4.

 

Hey I do not know which VAG-COM adapter to buy off ebay. Could you find a cheapo one for me or point me in the right direction? I have an 2000 Audi A6.

Thanks a lot!

 

you might find this thread helpful

https://www.audiforums.com/m_844405/tm.htm

I just bought this cable a couple of days ago and should be getting it soon. Hopefully it will work...

 

http://cgi.ebay.com/ebaymotors/USB-K...QQcmdZViewItem

that will work. You can't really go wrong with any of the wires on ebay if you type in vag com as long as its a reputable seller. Just don't overspend