Hi fellow S3 owners. I recently changed my filter to a K&N. Initially the performance was great. I have since noticed that the acceleration is not so good and the turbo kicks in around 5,000 RPM, whereas before it was very fast and smooth. I've been considering replacing the MAS to see if it has generated a fault or become oiled due to the filter. Does anyone have any advise on this? Merry Christams one and all!!
