It's got a different intake-manifold/piping and the exhaust-piping is completely different also, because of the single turbo. This is the main reason why it won't fit, without making MAJOR modifications to the engine bay. You also need a VG30DET-ECU and intercooler.
Apart from that the VG30DET hasn't got that much more power then the VG30DE as found in the NA...stock it has around 250-ish bhp, although you could pump the boost up and get it to TT-bhp level.