header mounting questions

[iluvmy72]

I have a set of ceramic coated headers....they are blockhugger style and I know I can bolt them on the engine with no problem but it's the other end I'm not sure of......I don't owna a welder and I know I'll need anextension piece of some sort to make it fit correctly.....I am considering a piece of flex exhaust tubing but am not sure on how to seale the whole thing....basicaly I'm wondering if I can get away with bolting it in and it still looking good and will have good performance.....any sugestions besides paying a muffler shop would help.....thanks