It's a '03 Golf GTi 1.8T - KKK K03 Turbo 15-20psi, REVO ECU, SPS3 Variable Boost and Timing Controller, Carbonio CAI, 4Bar Fuel,TurboSmart DV,Techtonics 2.5" dowpipe, NeuSpeed Cat-Back

sounds like it. but what is up with the end that the second video that has ended like that?

Is that a stock GTI ??>>