tell us about your turn signals- i want some and do they work properly or do they blink fast? don't worry about your crankcase re-route- just enlarge the hole. more than likely you will never use it. i enlarged my oem hole like nearly everyone else and have no problems with gunk or anything. don't drill it larger though, heat up a drill bit and push it through, that's cake compared to sitting there and turning a drill bit by hand for hours. also, want an ever larger smile? get rid of that pathetic oem header- it's severely plugging your air release up. it's a tiny pipe and you should replace it if you want max performance. it's not ever as large as the exhaust outlet itself.