ORIGINAL: timothy thompson
ya i didnt mean it in a bad way i am building one with a os 90 fs. Need to do the muffler so it does not stick out the cowl that is not cool
I believe for your OS, the best way to go is Performance Specialist muffler with a 90 deg elbow.
OS exhaust port slants backward a little, so with a 90 deg elbow, it will direct the exhaust pipe to the bottom center of the cowl.