This looks like the surbo thing that was being sold in the UK for Mondeos. As I recall the company selling it were taken to court for false advertising. It actually lost power.

http://www.btinternet.com/~madmole/Revues/Surbo.html

-------------------------- '99 Mondeo ST24 Nice quiet Milltek cat-back exhaust Noisy K&N 57i Wanted: 3L block and a ST200 / SVT to pull bits from