hotshot's is a turbo converted 3kgt, see where it says "automatic" there where no auto VR-4s. right now I am also researching the conversion because all the leads on the Supercharger went dead and it seems like pointless when you can just turbo them. One thing I dont get is why all the TT conversions are done on stock pistons with like 10.5 compression? that is dangerous as hell and just begging for a blown out engine right? but to swap internals and rebuilt the engine is an easy $10,000.00 my question is: how much does a new or rebuilt 6G72TT cost? It be safer to just swap engines and mod from there right?