Thank you Stratous You Have made Very clear what I need to know , The post before you put some doubt ???? about that I wanted to clarify before buying tyhe BME 50 or the DA 50 I do not want to redo the firewall and cowling if the BME 50 will fit and now , "I AM A BELIEVER " lol . Thank you and all who responded to my question . Now anyone have a BME 50 with a pitts muffler for SALE ????????