I've been looking at an exhaust system for my '09 sedan and unfortunately most seem to be out of stock. I've noticed several FG1 exhaust systems for sale and wanted to check and see what would be needed to make the coupe exhaust fit the sedan since it's shorter. I've seen several posts that discuss the GReddy exahust adapter, but many of the listings for the adapter claim that they only work with GReddy exhausts. Would the adapter work to fit an FG1 coupe exhaust on an FA1 sedan? Or would I be better off taking things to an exhaust shop to have them weld in a midpipe extension?