Im trying to gauge interest in a bolt on to the stock manifold, use the stock DP, Ball bearing 700 crank HP turbo for the MKIII. I would need to extensively modify the turbine housings to accommodate the shape of the new GT wheels. In order to do so I would like to do maybe 10 at a time. This turbo would be water cooled and spool faster than any upgrade available now for the MKIII. Price however would be maybe $1700. BB turbos are a bit pricey.