Sportec RS425 Audi S4 Avant
September 15, 2009 by Admin · Leave a Comment

Sportec, a tuning firm from Switzerland, has modified the Audi S4 Avant to produce more than 400 PS.
Thanks to the newly programmed ECU and the installation of a new sports filter, the Sportec RS425 Audi S4 Avant 3.0-liter V6 compressor engine produces 425 PS instead of the standard 333 PS.


