well after some "adjustments" to the new exhaust its finally fitted to my Dedra, & the difference between the next & old exhaust is night n day! She's running alomst silent, just have to find one of those clamps where one pipe fits into another, & at the very back of the car the rubber which holds the exhaust to the back of the car has failed, so a look on ebay me thinks!
Just like to take this oppertunity to thank Brain again for all his valuable help!