Hi Gary,

Well i have Byron pusher set up on my jet, this pipe starts as regular pipe, half way down starts to flair to 1.5" diameter and ends 3" after that, then just before end there is exhaust pipe extention that is smaller diameter that comes out from side, bends towards engine and ends just before fan unit itself!...so what you think what pipe do i have?, i still have todrill and put back pressure nipple on it.

Sammy