OK decided to go all out with my new to me 07 WR450F! Ordered a set of hot cams, JD Jetting kit, LEXX MXe slip on, all free mods are done air box, Grey wire, AIS. The only thing left to order is a header looking between a Pro Circuit header or a FMF Powerbomb header, was going to go with a stock YZ header but knowing me i won't be satisfied till i get the most power out of the bike. I ride 80% wide open trails with probably 20% technical gnarly trails. My previous bike was a 01 TTR250 that i put over 20000+ miles on. So what pipe would best suit me? Ride Sea level to 800feet with temperatures between 20 degrees up to 85 degrees so i know there isn't just one jetting that will suit me here.