attach a dual system with the stock exhaust pipes before they go into the single mufler. This is getting interesting. I haven't looked under my car yet to see the exhaust, so I just assumed it was similar to the 2.8 exhaust. Apparently from what you have said the exhaust on our 3.0 has a dual system right up to the mufler, which is cool, because it would be easier to implement a true dual system ( 2 muflers) on our cars. the 3.0 has seperate exhaust headers and exhaust pipes running back to the muffler where they both run into the same muffler and come out dual pipes. Sounds kinda strange but I crawled under my car and looked.