07 wr450 help
8 replies to this topic
Posted December 07, 2008 - 02:58 AM
Hey guys, just wondering, ive been told the '07' wr 450 doesnt have any performance improvements when you put on a new pipe? i know it would have a sweeter tune but does anyone have anything to say against this let me know please! Also the preformance pack you get with it has the 2 upgraded jets with it, are these the best to put in or what size ones if they are not?
Posted December 08, 2008 - 12:13 PM
Dialed in my jetting, bike ran great. Added an fmf Q4 and wow big improvement across the full rpm spread...more grunt, more over rev, sweet midrange. No additional jetting changes required. I hear that the power bomb header works well with the Q4, and may add that also.