Hey guys, first post. I just bought a 2000 XR600 and i want to change the stock pipe for something else. I'm looking at a 4in supertrapp race slip on right now, for it's price, tunability and looks. Also my friend runs this pipe and has nothing but good to say about it. His however was a full system bought back in 99". Does anyone have a pipe they recommend or run on this bike? What do you like about your pipe etc. I am considering switching headers too, but wanted to see what everyone's opinion was on that as well. What brand did you use, was there a noticible loss of torque in the lower rpm's, what are the pro's and con's of them etc. Pics would be a huge help too. Thanks guys!