I have just installed a dep s7 full system exhaust to my 07 wr450, Now could anybody be kind enough to tell me wether I need to re-jet it or not? Would it give me much more power gains or jus drink juice? Also should I replace the throttle stop is this worth doing? As I have read a few threads promoting this mod on here. Sorry if I am soundin a bit daft but am a little new to the scene Thanks in advance for any response given.