New so sorry if this has already been covered before. Currently have a3 sline 1.4 tfsi COD daytona grey 2017 model, basically have a few questions on if you can do a few things while having a pcp contract that you wont shoot yourself in the foot when handing the car back. Going to tint the windows which wont be a problem but also was thinking of powdercoating the wheels and also de badging, would this have a negative affecting when handing car back. Also is there ano mods available that wont cause this problem and also void warranty? Thanks in advance!