My exhaust is rotten and i need a new one, and i need your help and expertise to choose a new one.

My idea is to keep the cat and taking off the "pot" after the cat and put a new rear silencer like this one:

http://www.supersprintuk.com/supersprint-rear-silencer-fiat-coupe-turbo-p-573.html

Another one i have found is this model from blueflame:

http://cgi.ebay.co.uk/FIAT-COUPE-TURBO-CATBACK-BLUE-FLAME-STAINLESS-EXHAUST_W0QQitemZ220294928130QQcmdZViewItemQQptZUK_CarsParts_Vehicles_CarParts_SM?hash=item220294928130&_trksid=p3286.c0.m14&_trkparms=72%3A1683%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318

Does it make a very loud sound comparing to the standard one?

Or if you have other ideas to my exhaust problem please tell me.

Thanks.