Hey mate welcome! I've been following your purchase on uk polo! Nice work with the car so far bud. As for your question the I've see the forge fmic handle 500whp on a polo tuned by bill at badger 5! Only problem with the forge is the big pressure drop which is why a lot of us run the seat sport core with better results. And the THS version is meant to be even better. As for the turbo the k04 isn't seen as much of an upgrade these days compared to the better flowing hybrids out there. Either way if you're getting a custom tune you may not needs rods but a good idea regardless. I can personally recommend Custom Code for the tune. Best luck and keep us posted!