I recently got a 2007 TTR125L, I am not new to bikes just this one. I am looking to put a FMF Powercore 4 exhaust and get a JD Jet Kit. Any information you guys can give me to help with this bike would be greatly appreciated. I'm not sure if i need to open the air box up or what jets to run with this bike with the exhaust. I have a 2012 DRZ400S with big bore kit, hot cams, fcr and mrd/ssw. I know what to do on it lol just not familiar with all the mods for this. Thanks in advance.