header pipe......

[WB450r]

i have an 05 450r and a pro circuit T-4 pipe tht ive had for bout a year......i was lookin at gettin a header pipe but dont no which one 2 get.......should i jus get the pro circuit header pipe or will a different kind work........and how much more hp will i gain.....and do i need to rejet after puttin on the header pipe.....and info would be great.......

THANX

[JW450R1]

Your better off just going with pro circuit's head pipe.You would have to go to there web site for more info,and look at a dyn. chart

[450rJam]

usually a good bet that when you system match parts they will fit better and compliment each other in the performance department.

[WB450r]

agiht THANX guys