Servus, I recently bought an Audi 80 B4 2.3L 5cylinder and find the car great… I am now seriously thinking about what I can do about the performance… bigger turbo etc. Can someone help me or tell me what all this work for (charge air cooler, pleul, piston, etc.) if I plan to drive 250-350 Ps? Also from the cost spectrum? Would I be very happy if I got a few helpful answers! Lg Moritz