I am sending out the vf30 turbo I was talking about in another thread, to deadbolt. I am having them replace all the seals and gaskets and inspect the turbo. I figure while I had it there to get something else done for less than 100 bucks. So I wanted to know what would be the best use of that money on the turbo.....

-black coating on the exhaust housing

-ceramic coating on the compressor

-clip and rebalance the wheel

-porting

-or something else?