Got a 2,8 V6 Q it has full miltech system, but the blowing is from the flexi joints from the down pipes to the CAT. Can you get just these flexi joints replaced? The rest of the down pipe/cat section is fine, no problems. Just the flexi join on one side, but the other side looks like it is about to go too. Any advise on how to sort the prob and approx costs will be good. Thanks