Is it safe for me to get a stage 2 map on my A3 AUM 1.8T which has got 152,000 on the clock? As far as I am aware everything is original in the engine. Modification wise I am planing to do the following before mapping:
turbo back exhaust with sports cat
maybe front inter-cooler
extra cold air feed to the air box
replace all vacuum hoses
Is this a good idea or will I blow my engine or turbo? If not what sort of bhp figures am I looking at?