QUOTE(Eric @ May 29 2008, 09:26 PM)

buy an electric die grinder from HF and some grinding bits and go at it
it's not hard. i port-matched my old H22 intake manifold to a 68mm throttle body with a crappy dremel, not perfect but it turned out quite good.
i dont think an electric one would be powerful enough for the kind of metal on the turbo housings or the exh manifolds. especially, a dremel. that stuff's made of cast iron, it takes a while even for an air powered grinder with a iron bit to chew through all that rather than your aluminum (i'm assuming) intake. i think i put in about 2.5-3hrs on just porting out my exh mani, and that was not even including the polishing i did with the dremel.