Well guys, you are a hard bunch to convince!! This will be a cat back system made from T304 Stainless throughout. I do understand your concerns about lending a complete stranger your car, but if you have a look at this thread on the civic type'R owners website you will see another car we have borrowed in this way.
The ownew of that car got it back safely in one piece and with a brand new stainless exhaust for his trouble.
http://www.civictype-r.co.uk/forum/viewtopic.php?f=29&t=136508&st=0&sk=t&sd=a