Well I got my exhaust fixed on my LM. The Lambo dealer wanted $3000CAN for a factory replacment muffler and the hole back end of the truck would have to be taken apart to install it. I decided to get a custom made exhaust. I now have gutted cats that go to a new muffler and then new shiny exhaust tips. To bad Tubi didn't make an Exhaust system for the LM!! Anyways it sounds GREAT and the best part is no more backfiring.