Can a Protegé 5s exhaust be fitted into a 4 door Protegé (3rd gen)?
Theoretically it can be done, but it is more trouble than it is worth. The Protegé 5 is actually a shorter car than the 4 door Protegé, this will mean the exhaust hangers and piping lengths will be different. It is better to get an exhaust system specifically designed for the Protegé 5. However, if you insist; exhaust hangs and piping will have to be extended or cut. Make sure this work is done at a good muffler shop.