Since I new to VW and the TDI can some point me to a basic run down of the setup. I know it's direct fule injected like my truck and it has all the other go fast more power parts that new diesel's have but I'm need to know specific. Like does the Turbo have a waist gate if so can it be conrolled via comp mods and chips. Can the dealer tell if you chip and remove. I'm assumiong the ECM will register codes if you exceed preset limits. I'm power hungry becasue I drive a big displacemetn Diesel everyday and I like the HP and TQ they deliver. How much can I squeeze out of this littel 1.9 without haveing to invest in new injectors, turbo, Intercoller and so on. Also who make a good stelth exaust and air intake system for these things. Clear the constipation and the sinus infection and things get intresting. Thanks if advance for the help.