This is a really quick and easy mod you can do on your f80 f82 M3 and M4 to force the exhaust valves open to make the sound so much better than the stock exhaust sound.
Enjoy and if you have any questions please leave me a comment.
This is a really quick and easy mod you can do on your f80 f82 M3 and M4 to force the exhaust valves open to make the sound so much better than the stock exhaust sound.
Enjoy and if you have any questions please leave me a comment.