So, it seems you have done a good thing, Infinite, for the Ltd. So could you post a quick "what did you do by step" thing, with the cost involved, so that us other poor schmucks know what to do with this? That would be really cool.

1) got the E55 74mm TB (where'd you get it and cost)
2) needed a new board (which kind, where did you get it and cost
3) What else do you need and do etc etc
4) any issues run into
5) change in fuel economy if any (that's just for fun because who really cares????

We'd all really appreciate it Thanks Infinite. Mark