I recently purchased a FJ80 and are looking into replacing the exhaust system from the downpipes coming off the block back. Problem is, the two pipes come down, have an oxygen sensor in each and have what appears to be a make shift collector welded on that leaks and is making it almost impossible to find a muffler shop to work on. Any advice on what is suppose to be stock and where I could order oem fitiment would be appreciated. In addition, I am in the Central Florida area ( Closer to Daytona) should anyone on here know of a shop that can handle these types of replacements.