Muffler has been on for a few weeks. Sounds good but I wish it were louder. As for fitment, it fits ok but not great. I like the round pipes sticking out rather than the rectangler pipes. The muffler pipes are obviously crooked when you look at it so I will have to bend them apart. It isn't loud in the interior at all but when you give it some throttle you can hear the exhaust reverberating off of buildings. I would like to shoot for the Borla exhaust if it weren't so expensive.