is the stock radiator sufficient ? Or do I need an upgrade

(also, am planning on replacing the stock fan with an electric one)

 

I beleive that the stock rad should be sufficiant to keep that thing cool. If the stock rad is good for turbo swap cars it should be good for you. I myself installed a S4 stock rad with a e-fan and it keeps the car cooler than it did with the stock rad.

these pics are from before i swapped in the P-port









this is a pic with the new engine and efan attached