Two questions. There is a guy selling a used hx35 he said its fine he just upgraded to a bigger turbo on his second gen. He's asking $350 for it is that reasonable for a used turbo? Also what would I have to do for a down pipe?

 

You should not need to do anything with the down pipe except move it back a inch or so and it will clamp right up to the HX35. And 350 sounds about right for a used turbo