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Audi A4 Avant Tuning. B&b automobiltechnik has just released a tuning program for the audi a4 that is arguably one of the most comprehensive kits that the german tuner has. A limousine and avant estate have been modified by the famous belgian company caractere that works on audi, vw and porsche cars since 1992.

This tune increases the boost pressure 4psi over the stock turbo pressure, increasing power. Here is an entry point to modify your sedan, avant or cabriolet whether it dates back to 1995 or is. The 2017 audi a4 / s4 sedan by abt america.