Right I’ve got a mk5 gti and every now and again as I look out my rear view I see a light puff of smoke. I’m not sure if it’s related but I’ve only noticed it since I had my decat fitted. I’m currently running standard map waiting to finish the mods before map. I can’t seem to decipher what colour the smoke is. I think I’m burning oil though as I’m going through around 1 litre of oil a month but I’ve read that’s normal for these cars. Any help will be much appreciated