I have a 2007 KX 250. So far I have had my suspension revalved, and I have a Vforce reed-valve. I recently put a top-end in it and it is pretty awesome, felt the difference right away. But I am looking for some other things as well. Obviously getting an exhaust. Im not too worried about that as I know a pro who got off a 2007 250 and is willing to let it go for $100. Has anyone ported a 250 on this forum?? I have not yet and dont know anyone who has and if its worth it. Thanks for advice and hope to read it. Ryan.