This is just personal opinion, but if your going for longevity, then go for it. I have a KFX450R, the quad version, and I have aftermarket exhaust, DASA full stainless header pipe, and an air box eliminator, also, re-programmed for peak power. My exhaust will glow red about 12" up the header pipe, so I am sure your exhaust valves would be hotter than that, so, there would be no problem burning the excess oil off.