I currently have a 05 mustang convertible, I love my car very much but looked into something new but decided to keep my mustang. How much will it cost me to get my automatic switched to a manual? I do t want to get a new cause it only has 34,700 miles on it and it’s still like a new car, so that’s why I believe it should be better to that than buy a newer car. I love manuals and would Like to install on it and later do some engine work.