Yes, It's an Offy/Fenton combo. No I really didn't have any issues with grinding although I may later as one clamp sits at an angle, not parallel to the head and may loosen which means I'll have to grind a flange on the Offy. I did have to grind out the exhaust end of one Fenton
to get the "O" ring seal between it and the J pipe to seat properly.
