Here's a question for you. My friend has a Golf 1.8t with the AGU engine and is currently having a KO3s fitted and a remap this week. My A3 1.8t has the AUM engine which obviously already has the KO3s. When both cars are remapped(Stage 1), is there any advantage in power between the 2 as my friend has heard that AGU with the newer turbo performs better than the AUM. I cant see how myself but would be interesting to find out if he's right. Cheers.