I just trade for a completly bone stock flawless 2003 YZ250 last week. My question is now I have it I have the urge to modify it. I want to mostly trail ride it on fire roads and woods also, and the occansional trip down to sand lake. So I think I want a pipe that gives more low end but I don't want to sacrafice to much top for the sand trips. What do you guys recommend?