Differences between AutoThority and Neuspeed?
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99.5 1.8T QMS
I can tell you though, that by seat of the pants feel, IMO of course, .8 bar just does not have as much punch as 1 bar. I've driven a salesperson's Neuspeed chipped A4, APR chipped car is much more noticeable.
There's many variables for you to look at, just do a bunch of research. It took me several months before finally deciding on APR. Whichever chip you choose, you will be happier than with your car stock.
email me if you've questions



