Bear in mind that if it goes lean or starts to det, it could be the most expensive bargain you ever buy.

Personally I would want to get a chip from a reputable dealer as there is some rubbish knocking around out there.

That said, there are also loads of pirate copies of good chips which work perfectly, so its not like it cant work out well.

If you do it, for god sake make sure someone checks it over with det cans and a wideband!