audi a4 b7 best ecu upgrade
#2
AudiWorld Senior Member
No singular answer to this as folks tend to be happy with whatever they choose . One rule of thumb folks use is to choose a supplier who provides support closest to wherever is most convenient for you to have maintenance work done. Not withstanding that, newest companies offering upgrades include JHM and Unitronic and then there are the more established companies Revo, APR, GIAC. This isn't a complete list, just what I can remember right now.
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