chiptuning

Hi people, My name is korben, i'm living in Réunion island near South Africa, i'm a chiptuner, this is my project with a A3 8P hatchback Sline edition 2.0 tdi cr 170 facelift 2010. On this car, i have modified the full exhaust with a personally exhaust in 63.5mm, and a defap substitute plug...