2015 Peace be upon you I am offering Roush mufflers for a Mustang 5.0 that were installed on a 2015 model. They are not electronic and have a good, quiet sound. The mufflers are good and have no leaks or problems. (According to the previous owner and the workshop technician, they are original, but I don't have invoices or anything for them). Bidding publicly is preferred for credibility and clarity. Thank you.