i had pt p&s ,stock port on my 91. it was ok but no top end. i got the q pipe with stock port and it was like wow. it made a huge diff everywhere. now the pt was smoother than the q but not near the power. then i sent off my cyl to bartlett racing. now im right on the tail of these honda 330 bolt ons. im even beating some of them. who ever told u a pt pipe is better is completely wrong. it is kind of a snappy pipe but i run mine in the woods every weekend and it does great